Very grateful for all help with these clues please.
22dn: “Cruel first piece in Greek Scrabble for Plato and second son (8).”
33dn: “Regretted horse nipping Queen when mounted in fine ceremony (8).”
44dn: “Small hawk dropped in to rip in small pieces (9).”
52dn: “Be immersed with wife in computer game (4).”
55dn: “Pair of books about keeping whiskey (3).”