Consumed at school, say (5)
I believe the answer is:
eaten
'consumed' is the definition.
(similar in meaning)
'school say' is the wordplay.
'school' becomes 'Eton' (famous UK public school).
'say' shows a homophone (sound like).
'eton' sounds like 'EATEN'.
'at' is the link.
(Other definitions for eaten that I've seen before include "Upset" , "This bread is soon forgotten, it's said" , "having been fed?" , "courses enjoyed?" , "Devoured" .)