Caught bishop ingesting odd food fragment (5)
I believe the answer is:
crumb
'fragment' is the definition.
(crumbing is a kind of fragmenting)
'caught bishop ingesting odd food' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'bishop' becomes 'B' (abbreviation used in chess).
'ingesting' means one lot of letters goes inside another.
'odd food' becomes 'rum' (rum is a kind of food. I am not sure about the 'odd' bit.).
'c'+'b'='cb'
'cb' placed around 'rum' is 'CRUMB'.
Can you help me to learn more?
(Other definitions for crumb that I've seen before include "Dry morsel" , "Very little comfort perhaps" , "Small piece of e.g. bread or cake" , "Small piece of bread (or comfort!)" , "Scrap of bread" .)