Bet wind affected sleeping accommodation (4,3)
I believe the answer is:
twin bed
'sleeping accommodation' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'bet wind affected' is the wordplay.
'affected' is an anagram indicator.
'bet'+'wind'='betwind'
'betwind' with letters rearranged gives 'TWIN BED'.
Can you help me to learn more?
(Other definitions for twin bed that I've seen before include "place for retirement" , "This may be found in a double room" , "One of a pair to sleep on" , "One of a matching pair in a room for two" .)