Relate fabrication about one studio (7)
I believe the answer is:
atelier
'studio' is the definition.
(atelier is a kind of studio)
'relate fabrication about one' is the wordplay.
'fabrication' is an anagram indicator.
'about' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'relate' is an anagram of 'ateler'.
'ateler' going around 'i' is 'ATELIER'.
(Other definitions for atelier that I've seen before include "I relate to workshop used by artist" , "Tie earl up in the artist's place" , "Artist's studio (French)" , "Artist's workshop, studio" , "Designer's workshop" .)