Have second thoughts regarding Turkish sides in track final (7)
I believe the answer is:
rethink
'have second thoughts' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'regarding turkish sides in track final' is the wordplay.
'regarding' becomes 're' (re can mean regarding, concerning).
'sides' says to hollow out the word (remove centre letters) (only the letters on the sides are used).
'final' suggests the final letters.
'turkish' with its centre removed is 'th'.
The last letter of 'track' is 'k'.
're'+'th'+'in'+'k'='RETHINK'
Can you help me to learn more?
(Other definitions for rethink that I've seen before include "Fresh ideas" , "another assessment" , "Consider afresh" , "Another consideration" , "Take another approach" .)