Bird in fight, then another fight (7)
I believe the answer is:
sparrow
'bird' is the definition.
(sparrow is a kind of bird)
'fight then another fight' is the wordplay.
'fight' becomes 'spar' (sparring is a kind of fighting).
'then' is a charade indicator (letters next to each other).
'another fight' becomes 'row' (I've seen this in another clue. I am not sure about the 'another' bit.).
'spar'+'row'='SPARROW'
'in' is the link.
Can you help me to learn more?
(Other definitions for sparrow that I've seen before include "Singing bird" , "Passerine bird" , "fowl, using outdated term" , "(Formerly very) common British bird" , "bird produced" .)