Bill has a t-title (7)
I believe the answer is:
account
'bill' is the definition.
(synonyms)
'a t-title' is the wordplay.
't-title' becomes 'c-count' ('count' said with a stammer like 'title' was; I have seen 'European title ' mean 'count' so perhaps 'title' could also mean 'count').
'a'+'ccount'='ACCOUNT'
'has' acts as a link.
(Other definitions for account that I've seen before include "Charge" , "News report" , "Financial record; narrative" , "Narrative or invoice" , "Explanation of conduct" .)