Print whole of section (4)
I believe the answer is:
oleo
'print whole of section' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'print whole of section' is the wordplay.
'section' says the answer is hidden in the clue.
'OLEO' is hidden within 'print whole of'.
Can you help me to learn more?
(Other definitions for oleo that I've seen before include "Prefix indicating oily" , "Fatty substance" , "Marge" , "Oil used in making margarine" .)