Wax from a can manipulated with a rub (8)
I believe the answer is:
carnauba
'wax' is the definition.
(I know that carnauba is a type of wax)
'a can manipulated with a rub' is the wordplay.
'manipulated with' indicates anagramming the letters.
'a'+'can'='acan'
'a'+'rub'='arub'
'acan' with its letters anagrammed with 'arub' can make 'CARNAUBA'.
'from' acts as a link.
(Other definitions for carnauba that I've seen before include "Wax from a Brazilian palm" , "Yellowish wax" , "Brazilian tree or its wax" .)