Eccentric queen? (4)
I believe the answer is:
card
I believe this is a double definition.
'eccentric' is the first definition.
(I've seen this before)
'queen?' is the second definition.
(thesaurus)
(Other definitions for card that I've seen before include "Eg, a heart or club" , "club, for example" , "Comb (wool)" , "What may be used for greeting" , "Posted greeting" .)