Get worked on, using pliers and saw (6)
I believe the answer is:
beheld
'saw' is the definition.
(beholding is a kind of seeing)
'get worked on using pliers' is the wordplay.
'get' becomes 'be' ('get' can mean 'come to be').
'worked on using pliers' becomes 'held' (held in place with pliers).
'be'+'held'='BEHELD'
'and' acts as a link.
(Other definitions for beheld that I've seen before include "Laid eyes on" , "Saw or observed in olden times" , "watched" , "Seen" .)