Crossword Genius

One keeps close control, having had ten days off (6,4)

Ross

I believe the answer is:

steady hand

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'one keeps close control' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'had ten days off' is the wordplay.
'off' indicates an anagram.
'had'+'ten'+'days'='hadtendays'
'hadtendays' anagrammed gives 'STEADY HAND'.

'having' is the link.

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I've seen this clue in The Guardian.
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