Saturated fat (8)
I believe the answer is:
dripping
I believe this is a double definition.
'saturated' is the first definition.
(thesaurus)
'fat' is the second definition.
(dripping is a kind of fat)
(Other definitions for dripping that I've seen before include "tap needing washer?" , "F [FAT]" , "sweaty" , "Saturated" , "perspiring in heat?" .)