Getting by with dated tool (6,3)
I believe the answer is:
coping saw
'tool' is the definition.
(coping saw is a kind of tool)
'getting by with dated' is the wordplay.
'getting by' becomes 'coping' ('cope' can be a synonym of 'get by').
'with' says to put letters next to each other.
'dated' becomes 'saw' (see can mean to date romantically).
'coping'+'saw'='COPING-SAW'
(Other definitions for coping saw that I've seen before include "cutter" , "help in cutting corners?" , "Tool" .)