Follow surreptitiously (4)
I believe the answer is:
tail
(Other definitions for tail that I've seen before include "Queue" , "Last, rear, part" , "Elongated posterior part of an animal" , "Hindmost part" , "Follow (a suspect)" .)
I believe the answer is:
tail
(Other definitions for tail that I've seen before include "Queue" , "Last, rear, part" , "Elongated posterior part of an animal" , "Hindmost part" , "Follow (a suspect)" .)