Clip became coiled? That’s perfect! (10)
I believe the answer is:
'perfect' is the definition.
(similar in meaning)
'clip became coiled?' is the wordplay.
'clip became' anagrams to 'IMPECCABLE'.
But, I'm not clear how the anagram is indicated.
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for impeccable that I've seen before include "Immaculate" , "Faultless" , "In accordance with the highest standards" , "Without fault" , "Perfect - pure" .)