The one restful thing a discotheque has (3)
I believe the answer is:
cot
'the one restful thing' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'a discotheque has' is the wordplay.
'has' indicates a hidden word.
'COT' can be found hidden inside 'discotheque'.
Can you help me to learn more?
(Other definitions for cot that I've seen before include "Baby bed" , "Camp bed" , "baby carrier?" , "Small bed with high sides" , "Small boat to hold a baby" .)