Like every single adult (5)

I believe the answer is:

unwed

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

'single adult' is the definition.
'unwed' can be an answer for 'single' (I've seen this in another clue). I'm not certain of the 'adult' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for unwed that I've seen before include "Not married" , "Without benefit of clergy?" , "Divorced" , "Single" .)

I've seen this clue in the Evening Standard.

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