Rear-side cutter, used for joinery (4-3)

I believe the answer is:

back-saw

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'for joinery' is the definition.
The definition suggests a singular noun which matches the answer.

'rear-side cutter' is the wordplay.
'rear side' becomes 'back' (back is a kind of side. I am not sure about the 'rear' bit.).
'cutter' becomes 'saw' (I've seen this in another clue).
'back'+'saw'='BACK-SAW'

'used' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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