Greasy ointment (7)
I believe the answer is:
unguent
'greasy ointment' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for unguent that I've seen before include "Oily substance" , "application" , "An ointment or lubricant" , "Balm, ointment" , "Ointment, soothing salve" .)