Delegate's outside to help providing warrant (7)
I believe the answer is:
deserve
'warrant' is the definition.
(I've seen this before)
'delegate's outside to help' is the wordplay.
'outside' suggests removing the centre.
'to help' becomes 'serve' (serving is a kind of helping).
'delegate' with its middle removed is 'de'.
'de'+'serve'='DESERVE'
'providing' is the link.
(Other definitions for deserve that I've seen before include "Be entitled to" , "Merit (something)" , "Be worth" , "Warrant" , "rate" .)