Financial support part of UK turned over for part of Asia (5)
I believe the answer is:
india
'for part of asia' is the definition.
(India is a country of Asia)
'financial support part of uk turned' is the wordplay.
'financial support' becomes 'aid' (I've seen this in another clue).
'part of uk' becomes 'NI' (Northern Ireland).
'turned' is a reversal indicator.
'aid'+'ni'='aidni'
'aidni' in reverse letter order is 'INDIA'.
'over' acts as a link.
(Other definitions for india that I've seen before include "Large Asian republic" , "Territory" , "[TEST TEAM]" , "Nation, I (radio comms.)" , "Populous Asian country" .)