Boss takes leader of industrialists round workroom (6)
I believe the answer is:
studio
'workroom' is the definition.
(I've seen this before)
'boss takes leader of industrialists round' is the wordplay.
'boss' becomes 'stud' ('stud' can be a synonym of 'boss'**).
'takes' says to put letters next to each other.
'leader of' says to take the initial letters.
'round' becomes 'o' (round can mean a round object).
The initial letter of 'industrialists' is 'i'.
'stud'+'i'+'o'='STUDIO'
(Other definitions for studio that I've seen before include "In which to make a film or programme" , "Recording room" , "Where an artist works" , "An artist may work in this room" , "Atelier, say?" .)