Commercial trade is disrupted without victory (6)
I believe the answer is:
advert
'commercial' is the definition.
(I've seen this before)
'trade is disrupted without victory' is the wordplay.
'is disrupted' is an anagram indicator.
'without' is an insertion indicator ('without' can be similar in meaning to 'outside').
'victory' becomes 'v'.
'trade' with letters rearranged gives 'adert'.
'adert' placed around 'v' is 'ADVERT'.
(Other definitions for advert that I've seen before include "Notice; promo" , "Bill" , "Public notice" , "Promotional display" , "Refer to the red vat" .)