Rents adjusted for fliers (5)
I believe the answer is:
terns
'fliers' is the definition.
(tern is a kind of bird)
'rents adjusted' is the wordplay.
'adjusted' indicates an anagram.
'rents' is an anagram of 'TERNS'.
'for' acts as a link.
(Other definitions for terns that I've seen before include "Seabirds" , "Aquatic birds" , "Rents out these birds" , "Sea birds with long forked tails" , "Sea bird with long forked tail" .)