Crossword Genius

As things are, head office wags entertain one (3,2,2)

Ross

I believe the answer is:

how it is

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'wags entertain one' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'as things are head office' is the wordplay.
I cannot really see how this works, but
'head office' could be 'ho' and 'ho' is found in the answer.
This explanation may well be incorrect...

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I've seen this clue in The Independent.
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