Crossword Puzzle Syntax problem

Clue: Syntax problem

Armor problem (CHINK with 5 letters)
Fussy baby's problem (COLIC with 5 letters)
Prima-donna problems (EGOS with 4 letters)
Chess problem caption (MATEINTWO with 9 letters)
Megalomaniac's problem (EGO with 3 letters)
Without problems (e.g. ALLOK with 5 letters)
Batter's problem (SLUMP with 5 letters)
Addressee of the 4/14/1970 message "we've had a problem" (HOUSTON with 7 letters)
College essay problems, despite spell check (TYPOS with 5 letters)
Problem for a lawn mower (STONE with 5 letters)