Followed men inside, made to fit (8)
I believe the answer is:
tailored
'to fit' is the definition.
(thesaurus)
'followed men inside' is the wordplay.
'followed' becomes 'tailed' (I've seen this before**).
'men' becomes 'or' (I've seen this in other clues).
'inside' indicates putting letters inside.
'tailed' placed around 'or' is 'TAILORED'.
'made' acts as a link.
(Other definitions for tailored that I've seen before include "Adjusted" , "Suited to an individual" , "Adapted" , "(Of clothes) fitted, well cut" , "Simple in line or design, suit perhaps" .)