Notice eccentric character at the end of short drama (7)
I believe the answer is:
placard
'notice' is the definition.
('placard' can be a synonym of 'notice')
'eccentric character at the end of short drama' is the wordplay.
'eccentric character' becomes 'card' (I've seen this before).
'at the end of' means one lot of letters go next to another.
'short' means to remove the last letter.
'drama' becomes 'play' ('play' can be a synonym of 'drama').
'play' with its last letter removed is 'pla'.
'card' after 'pla' is 'PLACARD'.
(Other definitions for placard that I've seen before include "Bill" , "what may be carried in a demo" , "Printed notice" , "Slogan or message of protest on board" , "Sign for public display" .)