Makes footballers be quiet -- one's working inside (8)
I believe the answer is:
fashions
'makes' is the definition.
(fashioning is a kind of making)
'footballers be quiet one's working inside' is the wordplay.
'footballers' becomes 'fa' (Football Association abbreviation).
'be quiet' becomes 'sh'.
'one's' becomes 'is' (roman numeral).
'working' becomes 'on'.
'inside' indicates putting letters inside.
'is' enclosing 'on' is 'ions'.
'fa'+'sh'+'ions'='FASHIONS'
(Other definitions for fashions that I've seen before include "Styles or vogues" , "Trends and styles as in clothes" .)