Start in winding passage (7)
I believe the answer is:
transit
'passage' is the definition.
(I know that passage can be written as transit)
'start in winding' is the wordplay.
'winding' is an anagram indicator.
'start'+'in'='startin'
'startin' anagrammed gives 'TRANSIT'.
(Other definitions for transit that I've seen before include "Passage of a planet across the sun's disc" , "The process of going or conveying" , "In - - (en route)" , "Haulage" , "In migration" .)