Fine to persevere (3-7)
I believe the answer is:
see through
This clue might be a double definition.
'fine' is the first definition.
Both the definition and answer are adjectives. Maybe you can see an association between them that I can't see?
'persevere' is the second definition.
(thesaurus)
'to' is the link.
Can you help me to learn more?
(Other definitions for see through that I've seen before include "not be taken in" , "Perceive the true nature of" , "Rumble" , "sheer?" , "Stay to the end" .)