Remarkable twister is in Toronto after winding through Connecticut! (13)
I believe the answer is:
contortionist
'remarkable twister' is the definition.
'contortionist' can be an answer for 'twister' (I've seen this in another clue). I am not sure about the 'remarkable' bit.
'is in toronto after winding through connecticut' is the wordplay.
'after winding' is an anagram indicator.
'through' indicates putting letters inside (inserted letters go through the word).
'connecticut' becomes 'CT' (US postal abbreviation).
'is'+'in'+'toronto'='isintoronto'
'isintoronto' with letters rearranged gives 'ontortionis'.
'ontortionis' going within 'ct' is 'CONTORTIONIST'.
Can you help me to learn more?
(Other definitions for contortionist that I've seen before include "Twisty and bendy entertainer" , "Twisting entertainer" , "One with rubber limbs" , "Elastic-bodied entertainer" , "One shifts joints unpredictably" .)