One suffers effects of sunburn, having rolled over in a doze (6)

I believe the answer is:

asleep

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'one suffers effects of sunburn having rolled over' is the definition.
I can't judge whether this defines the answer.

'a doze' is the wordplay.
'doze' becomes 'sleep' (I've seen this before).
'a'+'sleep'='ASLEEP'

'in' is the link.

Can you help me to learn more?

(Other definitions for asleep that I've seen before include "See, pal strangely is not awake" , "coiled up?" , "Please (anag) - numb" , "Having forty winks" , "Dormant, inactive" .)

I've seen this clue in The Guardian.

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