Recovers quickly as photographs not allowed (5,3)

'recovers quickly' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'photographs not allowed' is the wordplay.
I cannot really understand how this works, but
'photographs' could be 'snaps' ('snap' can be a synonym of 'photograph') and 'snaps' is found within the answer.
'not' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
The remaining letters 'ut' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'as' is the link.

Can you help me to learn more?