Board game's ending with bishop in spot (6)
I believe the answer is:
embark
'board' is the definition.
(I know that embark is a more specific form of board)
'game's ending with bishop in spot' is the wordplay.
'ending' says to take the final letters (the ending of the word).
'with' says to put letters next to each other.
'bishop' becomes 'B' (abbreviation for bishop in chess).
'in' is an insertion indicator.
'spot' becomes 'mark' (I've seen this in other clues).
The final letter of 'game' is 'e'.
'b' placed inside 'mark' is 'mbark'.
'e'+'mbark'='EMBARK'
(Other definitions for embark that I've seen before include "Set out (on an enterprise)" , "Go aboard" , "get on board" , "Start" , "Set out on journey" .)