Sample of Engelbert Humperdinck provides hit (5)
I believe the answer is:
thump
'hit' is the definition.
(thumping is a kind of hitting)
'sample of engelbert humperdinck provides' is the wordplay.
'sample of' indicates a hidden word (an extract or sample of the clue).
'THUMP' can be found hidden inside 'engelbert humperdinck provides'.
(Other definitions for thump that I've seen before include "Smack" , "Hit hard" , "Hit - defeat heavily" , "Pound" , "Hit (with fist)" .)