Piece of card (5)
I believe the answer is:
queen
This clue is a double definition.
'piece' is the first definition.
(I know that queen is a type of chess piece)
'card' is the second definition.
(I know that queen is a type of face card)
'of' acts as a link.
(Other definitions for queen that I've seen before include "Good - - Bess" , "Regina" , "Sovereign - bee" , "ER, say?" , "Rock group; royal personage" .)