THEME: Y in a phrase changed to ING
GOOD ONES: Taking inventory at the Tropicana plant? ORANGE COUNTING [Orange County]
Boxer catching flies? SHAGGING DOG [shaggy dog]
Pierre's home: Abbr. S DAK [I thought
maison]
Office component EXCEL [I thought an actual office]
Singer? RAT
BTW: '60s-'70s Mets coach Eddie : YOST [he is better known as a top flight lead-off hitter]
Seraphim and cherubim, to Giovanni ANGELI [As
angeli is not used in English, I'd go with "Actress Pier"]
Grammarians' concerns USAGES [the usage is USAGE]
Big Apple news initials NYT [the correct name of the paper includes THE]
EINS, OESTE, EL NORTE, ALLO are not used in English.
RATING:

Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun