Man attached to a girl (6)
I believe the answer is:
alison
'man' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see a link between them that I don't see?
'attached to a girl' is the wordplay.
'attached' becomes 'on' (I've seen this in other clues).
'to a' means one lot of letters go next to another (I've seen this in other clues).
'girl' becomes 'alis' ().
'on' after 'alis' is 'ALISON'.
Can you help me to learn more?
(Other definitions for alison that I've seen before include "lady" , "Girl" , "female" , "woman" , "Girl's name" .)