Spots back in kitchen cabinet (4)
I believe the answer is:
acne
'spots' is the definition.
(skin condition causing spots)
'back in kitchen cabinet' is the wordplay.
'back' is a reversal indicator.
'in' indicates a hidden word.
'enca' can be found hidden inside 'kitchen cabinet'.
'enca' reversed gives 'ACNE'.
(Other definitions for acne that I've seen before include "Adolescent skin disease" , "Skin problem, mainly of teenagers" , "Problem to face in" , "Face problems" , "Teenage spots" .)