Crossword Genius

Follow to the end (4)

Ross

I believe the answer is:

tail

I believe this clue is a double definition.

'follow' is the first definition.
(both can mean to chase or pursue)

'the end' is the second definition.
(tail is a kind of end)

'to' acts as a link.

(Other definitions for tail that I've seen before include "Private investigator" , "Dog - or part of one" , "Follow; end part" , "Hindmost part" , "Follow closely - taper (off)" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app