One holding all the cards (6)
I believe the answer is:
dealer
(Other definitions for dealer that I've seen before include "Trader; card player" , "putting his cards on the table?" , "Merchant" , "Stockjobber" , "Person engaged in trading" .)
I believe the answer is:
dealer
(Other definitions for dealer that I've seen before include "Trader; card player" , "putting his cards on the table?" , "Merchant" , "Stockjobber" , "Person engaged in trading" .)