Frying liquids (4)
I believe the answer is:
oils
'frying liquids' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for oils that I've seen before include "art exhibits perhaps" , "Liquids for frying" , "Viscous substances kept in silo" , "Olive and sesame, for instance" , "Soil, oddly, used by painters" .)