Blooming British abandoning fight (3)
I believe the answer is:
out
'blooming' is the definition.
(I've seen this in other clues)
'british abandoning fight' is the wordplay.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'abandoning' is a deletion indicator.
'fight' becomes 'bout' (synonyms).
'bout' with 'b' taken away is 'OUT'.
(Other definitions for out that I've seen before include "Disnmissed (cricket)" , "Not indoors" , "Unacceptable" , "not acceptable" , "Possibly caught" .)