Very grateful for all help with these three clues please.
2dn: "Diabolical yarn given a hearing (5)." I have C-U-L.
39ac: "King in a suit of clothes? It doesn't exist (4)." I have A-A-.
48ac: "Feature of debit card - one carried by this person's for extra cash (3,5)." I have P-N,-O-E-.