Wolf backs out first in this issue (7)
I believe the answer is:
outflow
'this issue' is the definition.
(thesaurus)
'wolf backs out first' is the wordplay.
'backs' shows that the letters should be reversed in order.
'first' says to put letters next to each other.
'wolf' reversed gives 'flow'.
'flow' put after 'out' is 'OUTFLOW'.
'in' is the link.
(Other definitions for outflow that I've seen before include "running away" , "Amount flooding away" , "Amount of liquid moving away" , "Tofu owl (anag.)" , "Liquid issuing from a place" .)