Bishop right to get silver crow (4)
I believe the answer is:
brag
'crow' is the definition.
(I know that crow can be written as brag)
'bishop right to get silver' is the wordplay.
'bishop' becomes 'B' (chess abbreviation).
'right' becomes 'r' (common abbreviation).
'to get' says to put letters next to each other.
'silver' becomes 'Ag' (Ag is the chemical symbol for silver).
'b'+'r'+'ag'='BRAG'
(Other definitions for brag that I've seen before include "Card game, like poker" , "Card game - boast" , "popular with 15 [EGOTIST] , no doubt" , "boast; form of poker" , "game of bluff" .)