Crossword Genius

As worn by clergymen and office workers? (8,5)

Ross

I believe the answer is:

clerical dress

I'm a little stuck... Click here to teach me more about this clue!

'as worn by clergymen' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'office workers?' is the wordplay.
I cannot quite understand how this works, but
'office' could be 'clerical' (I've seen this before) and 'clerical' is located in the answer.
The remaining letters 'dress' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

'and' is the link.

Can you help me to learn more?

I've seen this clue in The Globe and Mail.
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