Crossword Genius

A bit insane at work while not present (2,8)

Ross

I believe the answer is:

in absentia

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'while not present' is the definition.
I can't judge whether this definition defines the answer.

'a bit insane at work' is the wordplay.
'at work' is an anagram indicator.
'a'+'bit'+'insane'='abitinsane'
'abitinsane' with letters rearranged gives 'IN ABSENTIA'.

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(Other definitions for in absentia that I've seen before include "not at event" , "While not present (Latin)" , "Wanting an appearance" , "away" .)

I've seen this clue in The Hindu.
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