Outstanding recollection of community development leader (3)
I believe the answer is:
due
'outstanding' is the definition.
(I've seen this in another clue)
'recollection of community development leader' is the wordplay.
'recollection of' shows that the letters should be reversed in order (recollect letters in the opposite direction).
'community' becomes 'eu' (European Union, a community of nations).
'leader' suggests taking the first letters.
The first letter of 'development' is 'd'.
'eu'+'d'='eud'
'eud' backwards is 'DUE'.
(Other definitions for due that I've seen before include "Appropriate - fee - now owing" , "Unpaid or expected" , "Proper; owed" , "Entitlement" , "Requisite" .)