What a crop top exposes (7)
I believe the answer is:
midriff
'what a crop top exposes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for midriff that I've seen before include "Tummy area" , "Part of body between waist and chest" , "Diaphragm area" , "Area between stomach and chest" , "Part of torso" .)