Now and again, follows the man (4)
I believe the answer is:
here
'now' is the definition.
(thesaurus)
'again follows the man' is the wordplay.
'again' becomes 're'.
'follows' means one lot of letters go next to another.
'the man' becomes 'he' (**).
're' put after 'he' is 'HERE'.
'and' acts as a link.
(Other definitions for here that I've seen before include "Hither" , "The present location" , "On this spot" , "At this stage" , "To hand" .)