Bill has correspondence with leading lady (6)
I believe the answer is:
poster
'bill' is the definition.
(I know that bill can be written as poster)
'correspondence with leading lady' is the wordplay.
'correspondence' becomes 'post' (I've seen this in other clues).
'with' says to put letters next to each other.
'leading lady' becomes 'ER' (Elizabeth Regina).
'post'+'er'='POSTER'
'has' is the link.
(Other definitions for poster that I've seen before include "Large advertisement" , "Printed advert" , "Person who sends" , "bulletin board participant" , "surfer who leaves messages on boards?" .)