At your send-off, bishop and I included a short life history (8)
I believe the answer is:
obituary
'a short life history' is the definition.
'at your send-off bishop and i included' is the wordplay.
'send off' is an anagram indicator (I've seen 'sent off' mean this).
'bishop' becomes 'b' (abbreviation used in chess).
'and' says to put letters next to each other.
'included' indicates putting letters inside.
'b'+'i'='bi'
'at'+'your'='atyour'
'atyour' anagrammed gives 'otuary'.
'otuary' placed around 'bi' is 'OBITUARY'.
(Other definitions for obituary that I've seen before include "Short newspaper piece about deceased luminary" , "Newspaper article about person recently dead" , "Account of a life after death" , "Short account of deceased person's life in a newspaper" , "Brief newspaper account of life of notable deceased" .)