A fool attached to a girl (5)
I believe the answer is:
anita
'a girl' is the definition.
'a fool attached' is the wordplay.
'fool' becomes 'nit' (I've seen this before).
'attached' becomes 'a' (this could be a standard abbreviation of which I'm unaware).
'a'+'nit'+'a'='ANITA'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for anita that I've seen before include "-- Loos, US writer" , "- Loos (Gentlemen Prefer Blondes)" , "Female" , "Woman" , "eg Dobson or Roddick" .)