It joins debarked larch tree skirting meadow’s end (3,6)

I believe the answer is:

arc welder

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'it joins debarked larch' is the definition.
The definition suggests a singular noun which matches the answer.

'tree skirting meadow's end' is the wordplay.
I cannot really understand how this works, but
'tree' could be 'elder' (elder is a kind of tree) and 'elder' is found within the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

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

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