Plate with one large helping containing hunger (12)
I believe the answer is:
illustration
'plate' is the definition.
(thesaurus)
'one large helping containing hunger' is the wordplay.
'one' becomes 'i' (Roman numeral).
'large' becomes 'l'.
'helping' becomes 'ration' (I've seen this before).
'containing' indicates putting letters inside.
'hunger' becomes 'lust' ('lust' can be a synonym of 'hunger'**).
'l'+'ration'='lration'
'lration' placed around 'lust' is 'llustration'.
'i'+'llustration'='ILLUSTRATION'
'with' acts as a link.
(Other definitions for illustration that I've seen before include "Picture in a book or periodical" , "Picture; example" , "Sample" , "Drawing - example" , "artwork" .)