Cake for girl wearing uniform (7)
I believe the answer is:
brownie
'cake' is the definition.
(I've seen this before)
'girl wearing uniform' is the wordplay.
I cannot really understand how this works, but
'girl' could be 'row' and 'row' is found within the answer.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for brownie that I've seen before include "Junior Girl Guide" , "Benevolent elf; cake" , "Disciplined youngster" , "Junior Girl Scout" , "Benevolent helper" .)