Fossil resin provided by Chamberlain (5)
I believe the answer is:
amber
'fossil resin' is the definition.
(I've seen this before)
'provided by chamberlain' is the wordplay.
'provided by' indicates a hidden word (the answer is provided within the clue).
'AMBER' is hidden in the letters of 'chamberlain'.
(Other definitions for amber that I've seen before include "Stone" , "Yellow-orange" , "Fossilised resin used in jewellery" , "Yellow, translucent fossil resin" , "Road warning" .)