Following a line (7)

I believe the answer is:

pursuit

This clue is a double definition.

'following' is the first definition.
('pursuit' can be a synonym of 'following')

'a line' is the second definition.
(thesaurus)

(Other definitions for pursuit that I've seen before include "See 1" , "Hobby" , "Interest" , "The chase or the occupation" , "recreational activity" .)

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app