Made to measure style or detail (8)
I believe the answer is:
tailored
'made to measure' is the definition.
(I've seen this before)
'style or detail' is the wordplay.
'style' is an anagram indicator (style can mean to shape or design).
'or'+'detail'='ordetail'
'ordetail' with letters rearranged gives 'TAILORED'.
(Other definitions for tailored that I've seen before include "Made garments, suits perhaps" , "(Of clothes) fitted, well cut" , "Cut to fit" , "Adapted" , "Fitted to requirements" .)