Bishop to endure tirade (5)
I believe the answer is:
blast
'tirade' is the definition.
(a tirade is a blast of angry speech)
'bishop to endure' is the wordplay.
'bishop' becomes 'B' (chess abbreviation).
'to endure' becomes 'last' ('last' can be a synonym of 'endure').
'b'+'last'='BLAST'
(Other definitions for blast that I've seen before include "Report" , "Sudden strong gust of wind" , "Loud noise from a horn" , "Blow up with explosives" , "Explosion - mild oath" .)