Many shops recognised item of hardware (8)
I believe the answer is:
chainsaw
'item of hardware' is the definition.
'many shops recognised' is the wordplay.
'many shops' becomes 'chain'.
'recognised' becomes 'saw'.
'chain'+'saw'='CHAINSAW'
(Other definitions for chainsaw that I've seen before include "woodcutter?" , "Texas massacre tool" , "Tree-lopper's tool" , "Power tool" , "Timber cutter" .)