Friar's at home and eats heartily (5,2)
I believe the answer is:
tucks in
'eats heartily' is the definition.
The definition and answer can be both related to consumption as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?
'friar's at home' is the wordplay.
'friar's' becomes 'tuck's' (Friar Tuck).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'tucks'+'in'='TUCKS IN'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for tucks in that I've seen before include "has hearty meal" , "Greedily eats" .)