Possibly a summer in America? Hint it gets ruined (13)
I believe the answer is:
arithmetician
'possibly a summer' is the definition.
I can't tell whether this definition defines the answer.
'america? hint it gets ruined' is the wordplay.
'gets ruined' indicates anagramming the letters.
'america'+'hint'+'it'='americahintit'
'americahintit' with letters rearranged gives 'ARITHMETICIAN'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for arithmetician that I've seen before include "Numbers expert" , "Expert on calculating" .)