Self-conscious over growth with dark skin (7)
I believe the answer is:
swarthy
'dark skin' is the definition.
(I've seen this before)
'self-conscious over growth' is the wordplay.
'self-conscious' becomes 'shy' (I've seen this in another clue).
'over' indicates putting letters inside.
'growth' becomes 'wart' (I've seen this before).
'shy' enclosing 'wart' is 'SWARTHY'.
'with' acts as a link.
(Other definitions for swarthy that I've seen before include "Dark complexioned" , "Having a dark complexion" , "Dark skin" , "Dark-complexioned" , "Dark-skinned" .)