Tell on Dracula? (7)
I believe the answer is:
recount
'tell' is the definition.
('recount' can be a synonym of 'tell')
'on dracula?' is the wordplay.
'on' becomes 're' ('on' can be mean 'with reference to').
'dracula?' becomes 'count' (**).
're'+'count'='RECOUNT'
(Other definitions for recount that I've seen before include "outcome of tight ballot?" , "Tell a story" , "Check numbers" , "close election?" , "Go over details" .)