Nocturnal idiot, according to Spooner, is completely integrated (9)
I believe the answer is:
tightknit
'integrated' is the definition.
Both the answer and definition are adjectives.
Perhaps they are linked in a way I don't understand?
'nocturnal idiot according to spooner is completely' is the wordplay.
I cannot quite understand how this works, but
'idiot' could be 'nit' (nit can mean a stupid person) and 'nit' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tightknit that I've seen before include "organised carefully" , "Closely integrated" , "well-organised" , "Closely bound" .)