Relative difficulty: Medium-Challenging
THEME: INNER CITIES (60A: Urban areas (as hinted at by the circled letters in this puzzle's grid)) — theme answers are California cities (why California? I don't know). Circles inside those cities spell out the names of other cities (*not* California cities)

Word of the Day: Graham NASH (51A: Part of rock's CSNY) —
Graham William Nash, OBE (born 2 February 1942) is an English singer-songwriter known for his light tenor vocals and for his songwriting contributions with the British pop group The Hollies, and with the folk-rock band Crosby, Stills, Nash & Young. Nash is a photography collector and a published photographer. Nash was inducted to the Rock and Roll Hall of Fame as a member of Crosby, Stills & Nash and as a member of The Hollies in 2010. (wikipedia)
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RENO can be found inside at least one other California city—one that's better known than all these so-called cities. One that is also a California State University campus site.
Theme answers:
- 17A: California home of the Crystal Cathedral (GARDEN GROVE) (RENO)
- 26A: California locale just south of Camp Pendleton (OCEANSIDE) (ENID)
- 38A: California State University campus site (BAKERSFIELD) (ERIE)
- 52A: California's Sonoma County seat (SANTA ROSA) (TAOS)
Got thrown by many clues today—California cities were the primary obstacles, but other things also provided resistance. The second "D" in MID-SIZED CAR, for instance (11D: Toyota Camry, e.g.).
I was sure the adjective was "MID-SIZE" and so wrote in MID-SIZE AUTO. Grammar aside, it looks like my instincts were justified. Industry standard seems to be D-less "MID-SIZE." So that sucks. LUNETTES?? I don't know what these [Ornamental crescents] are—can't picture them—but crescents are moon-shaped, so OK. RENIN? (54D: Kidney secretion) Forgot. ENUF? (god that's ugly) (28D: Sufficient, informally) Misread clue and wrote in ENOW (also ugly, also commonish in xwords). Stared at [Part of rock's CSNY] and thought "?????????" I know very well who Crosby, Stills, NASH & Young are, but I've never heard them given the university-like initialism before. Absolutely baffling to me. RAMROD and "flintlock" are familiar terms in retrospect, but I couldn't get from one to the other easily at all today (50D: Flintlock accessory). I'd say RUBBER-NECKING or RUBBER-NECKERS caused a traffic jam way, way before I'd say RUBBER-NECKS (which I just wouldn't say) (25D: Causes of some traffic slowdowns). RUBBERNECKS is a verb to me.Bullets:
- 20A: Morlock's counterpart in science fiction (ELOI) — more crosswordese (see also every circled city). Nice to see the Morlock out and about.
- 71A: Pringles alternative (STAX) — never heard of them. STAX is a record label.
- 1A: Humped ox (ZEBU) — strangely, knew this instantly. I don't know many *kinds* of ox, but I know this one, primarily because it was once on "The Simpsons," as a vocabulary word that Lisa was trying to teach Maggie.
- 42D: One who deals in rags? (PIANIST) — very tough, but clever. I was thinking rags = tabloids.
- 35D: The Rolling Stones' "___ You" ("MISS") — could think only of "TATTOO You," which is the name of a Stones album.
- 13D: Ursula of "The Blue Max" (ANDRESS) — here's the thing about Ms. ANDRESS: If you include her first name in the clue, then no other part of the clue really matters, because there's only one famous Ursula.
P.S. this is so awesome I had to tell you about it right away—Frank Sinatra on how he acquired his crossword habit (personal letter to Eugene T. Maleska, former ed. of the NYT Crossword Puzzle).