Group cut initially from Band Aid (4)
I believe the answer is:
camp
'group' is the definition.
The answer and definition can be both related to thinking as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'cut initially from band aid' is the wordplay.
'initially' says to take the initial letters.
'from' means one lot of letters go next to another.
'band aid' becomes 'amp' (I've seen this in another clue).
The initial letter of 'cut' is 'c'.
'c'+'amp'='CAMP'
Can you help me to learn more?
(Other definitions for camp that I've seen before include "Party adherents" , "Where guys are tense" , "somewhat affected" , "military depot" , "Bivouac, group of tents" .)