Joined forces to bury short person from Warsaw? (8)
I believe the answer is:
interpol
'joined forces' is the definition.
(I've seen this before)
'bury short person from warsaw?' is the wordplay.
'bury' becomes 'inter' (to inter is to put into the ground).
'short' means to remove the last letter.
'person from warsaw?' becomes 'Pole' (Warsaw is the capital of Poland).
'pole' with its final letter taken away is 'pol'.
'inter'+'pol'='INTERPOL'
'to' acts as a link.
(Other definitions for interpol that I've seen before include "detectives" , "Organisation for international police cooperation" , "Lyon-based Police Commission" , "International law enforcement agency" , "Forces cooperating" .)