Scrap in wild bears' attacks (8)
I believe the answer is:
barrages
'attacks' is the definition.
(barraging is a kind of attacking)
'scrap in wild bears'' is the wordplay.
'scrap' becomes 'rag' (I've seen this in other clues).
'in' means one lot of letters goes inside another.
'wild' indicates anagramming the letters.
'bears' is an anagram of 'bares'.
'rag' placed inside 'bares' is 'BARRAGES'.
(Other definitions for barrages that I've seen before include "Continuous showers of shell" , "Bombardments, onslaughts" , "Rapid and continuous deliveries, of gunfire perhaps" .)