You said it finally looked correct! (5)
I believe the answer is:
amend
'correct' is the definition.
(I know that amend is a type of correct)
'you said it finally looked' is the wordplay.
'you said it' becomes 'amen' (I've seen this in another clue).
'finally' indicates one should take the final letters.
The final letter of 'looked' is 'd'.
'amen'+'d'='AMEND'
(Other definitions for amend that I've seen before include "Make minor improvements to (something)" , "make an improvement" , "Make minor improvements to (a document)" , "Change for the better" , "Change, alter" .)