Doughty United supporter backing attack (8)
I believe the answer is:
unafraid
'doughty' is the definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I don't see?
'united supporter backing attack' is the wordplay.
'united' becomes 'U' (abbreviation as in Man U for Manchester United).
'supporter' becomes 'fan' (fan is a kind of supporter).
'backing' says the letters should be written backwards.
'attack' becomes 'raid' (raid is a kind of attack).
'fan' written backwards gives 'naf'.
'u'+'naf'+'raid'='UNAFRAID'
Can you help me to learn more?
(Other definitions for unafraid that I've seen before include "not daunted" , "Feeling no fear" , "Not intimidated or fearful" , "Not scared or intimidated" , "Courageous" .)