Trick standard share of fire (13)
I believe the answer is:
conflagration
'fire' is the definition.
(I know that fire can be written as Conflagration)
'trick standard share' is the wordplay.
'trick' becomes 'con' (a con is a fraud or trick).
'standard' becomes 'flag' (I've seen this before).
'share' becomes 'ration' (ration is a kind of share).
'con'+'flag'+'ration'='CONFLAGRATION'
'of' is the link.
(Other definitions for conflagration that I've seen before include "Big blaze" , "Inferno" , "Burning" , "result of arson" , "terrible blaze" .)