Still partial to finer things (5)
I believe the answer is:
inert
'still' is the definition.
(not moving)
'partial to finer things' is the wordplay.
'partial to' says the answer is hidden in the clue (the answer forms part of the clue).
'INERT' can be found hidden inside 'finer things'.
(Other definitions for inert that I've seen before include "'Not moving, lifeless (5)'" , "Nitre (anag.)" , "Without the strength to move" , "like neon" , "Motionless, still" .)