Grasping tool (5)
(Other definitions for tongs that I've seen before include "Gripping tool" , "Fireside instrument with two gripping arms" , "See 21" , "Gripping device with two hinged legs" , "Tool used for picking up things" .)
'grasping tool' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pliers that I've seen before include "Small tool for gripping things" , "Kind of pincers with flat gripping surfaces" , "taxi-drivers, say" , "Hand tool used for gripping" , "Workmen's tools" .)