Servants requiring fees? (9)
I believe the answer is:
retainers
I believe this clue is a double definition.
'servants' is the first definition.
('retainer' can be a synonym of 'servant')
'fees?' is the second definition.
(I know this)
'requiring' acts as a link.
(Other definitions for retainers that I've seen before include "Family servants" , "Financial inducements" , "Money deposits or servants to nobility" .)