Suet or lard, eg (3)
I believe the answer is:
fat
I believe this clue is a double definition.
'suet' is the first definition.
(I've seen this in another clue)
'lard eg' is the second definition.
(lard is a kind of fat)
(Other definitions for fat that I've seen before include "Like 10 ac" , "Obese, overweight" , "As Bunter" , "Obese, having spare tyre etc" , "Substantial" .)