Look after a fine female pigeon (6)
I believe the answer is:
affair
'pigeon' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'look after a fine female' is the wordplay.
'look' becomes 'air' (something might have a certain air or look).
'after' says to put letters next to each other.
'fine' becomes 'f' (abbreviation e.g. condition of old coins, books).
'female' becomes 'f' (common abbreviation).
'a'+'f'+'f'='aff'
'air' put after 'aff' is 'AFFAIR'.
Can you help me to learn more?
(Other definitions for affair that I've seen before include "Concern -- extramarital relationship" , "Amour" , "Illicit liaison" , "Concern (maybe extra-marital?)" , "connected with love" .)