I urge men to replace sweet food (8)
I believe the answer is:
meringue
'sweet food' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'i urge men to replace' is the wordplay.
'to replace' is an anagram indicator (I've seen 'replacing' mean this (placing again)).
'i'+'urge'+'men'='iurgemen'
'iurgemen' is an anagram of 'MERINGUE'.
Can you help me to learn more?
(Other definitions for meringue that I've seen before include "Confection of beaten egg white and sugar" , "Dessert of beaten egg-white and sugar, baked crisp" , "What can be made from egg whites and sugar" , "Light cake of eggs & sugar" , "Crisp baked mixture of beaten egg whites and sugar" .)