Calls tailors (6)
I believe the answer is:
styles
I believe this clue is a double definition.
'calls' is the first definition.
(styling is a kind of calling)
'tailors' is the second definition.
('style' can be a synonym of 'tailor')
(Other definitions for styles that I've seen before include "Fashions and trends" , "Fashions and manners" , "Fashions or ways of doing things" , "where there was a mysterious affair involving Poirot" , "Manners or ways doing things" .)