Using a tool to shift support across hole (10)

I believe the answer is:

shovelling

'using a tool to shift' is the definition.

'support across hole' is the wordplay.
'support' becomes 'sling' (sling is a type of support for member (ie an arm)**).
'across' indicates putting letters inside.
'hole' becomes 'hovel'.
'sling' placed around 'hovel' is 'SHOVELLING'.

I've seen this clue in The Times.

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