To which pyjamas may be close connection? (7)
I believe the answer is:
nightie
'to which pyjamas may' is the definition.
I can't judge whether this definition defines the answer.
'close connection?' is the wordplay.
'close' becomes 'nigh' (similar in meaning).
'connection?' becomes 'tie' (tie is a kind of connection).
'nigh'+'tie'='NIGHTIE'
'be' acts as a link.
Can you help me to learn more?
(Other definitions for nightie that I've seen before include "Skimpy attire" , "Clothing worn in retirement?" , "Bedtime attire" , "cover for retiring" , "Bedtime wear" .)