If Turkish, it’s sweet! (7)
I believe the answer is:
delight
'sweet' is the definition.
The definition and answer can be both related to thinking as well as being singular nouns.
Maybe you can see a link between them that I don't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for delight that I've seen before include "charm" , "Enjoyment" , "Glee; its spirit rare, Shelley" , "''A lonely impulse of ...'' (Yeats)" , "Enchant" .)