Assistant, new to Yale, describing Connecticut's capital (7)
I believe the answer is:
acolyte
'assistant' is the definition.
(acolyte is a kind of assistant)
'new to yale describing connecticut's capital' is the wordplay.
'new' indicates an anagram.
'describing' indicates putting letters inside (describe can mean to form the outline of).
'capital' suggests taking the first letters.
The initial letter of 'connecticut' is 'c'.
'to'+'yale'='toyale'
'toyale' is an anagram of 'aolyte'.
'aolyte' placed around 'c' is 'ACOLYTE'.
(Other definitions for acolyte that I've seen before include "Loyal follower" , "Devoted follower" , "Religious assistant" , "Priest's assistant at a liturgical service" , "Assistant to a priest" .)