A phone that's right in the loft (7)
I believe the answer is:
atelier
'loft' is the definition.
(thesaurus)
'a phone that's right' is the wordplay.
'phone' becomes 'tel'.
'that's' becomes 'ie'.
'right' becomes 'r' (common abbreviation).
'a'+'tel'+'ie'+'r'='ATELIER'
'in the' is the link.
(Other definitions for atelier that I've seen before include "Tie earl up in the artist's place" , "Artist's workroom" , "Designer's workshop" , "Artist's studio (French)" , "Artist's workshop, studio" .)