Another convent resident hit? That's a problem (9)
I believe the answer is:
conundrum
'problem' is the definition.
(I know that conundrum is a type of problem)
'another convent resident hit?' is the wordplay.
I cannot quite understand how this works, but
'another' could be 'r' (I've seen this in other clues) and 'r' is found in the answer.
'convent resident' could be 'nun' (I've seen this before) and 'nun' is present in the answer.
This explanation may well be incorrect...
'that's a' is the link.
Can you help me to learn more?
(Other definitions for conundrum that I've seen before include "Puzzling problem" , "Puzzling question" , "Difficult problem" , "Difficult question" , "Puzzle, riddle" .)