Powerful feller Bond consulted (8)
I believe the answer is:
chainsaw
'powerful feller' is the definition.
(something which might fell trees)
'bond consulted' is the wordplay.
'bond' becomes 'chain' (chain is a kind of bond).
'consulted' becomes 'saw'.
'chain'+'saw'='CHAINSAW'
(Other definitions for chainsaw that I've seen before include "Tree-lopper's tool" , "Timber cutter" , "woodcutter?" , "powered device" , "Powered cutter" .)