Bishop leaves overcome, having dined (5)
I believe the answer is:
eaten
'dined' is the definition.
(having had a meal)
'bishop leaves overcome' is the wordplay.
'bishop' becomes 'B' (chess abbreviation).
'leaves' indicates named letters should be taken away.
'overcome' becomes 'beaten' (synonyms).
'beaten' with 'b' taken away is 'EATEN'.
'having' acts as a link.
(Other definitions for eaten that I've seen before include "Swallowed" , "courses enjoyed?" , "Taken into the body as food" , "Gobbled" , "worried" .)