Cryptic crossword No 238

Across

1. Group meeting unexpectedly re-interpreted Star of Bethlehem while pruning bits of the tree (5,3)
2. Where five gold rings may be kept at the ready (2,4)
3. Skip the beginning of Elf – it’s frivolous (4)
4. Hollywood's new arrangement of Let It Snow gets Dean's backing (10)
5. Maybe Jesus’ dad has a bit of potato with parsley covering (6)
6. Frozen chorus slaughtered endlessly? Time to get going (4,4)
7. Church event leads to father explaining the epiphany (4)
8. Quickly prepare furniture cover to buy for a particular woman… (5,8)
9. Amateur Santa's carrying the starter to more than one starry name (4)
10. Physically intolerant of everything merry, Grinch is regularly ignored (8)
11. It’ll be along very soon now xxxx (6,6)
12. …Skate to her, shaking as a result of extreme temperature (10)
13. Frosty song reaches a pitch no one wants to hear (4,4)
14. Gift returned by Slade? Ta, Noddy! (6)
15. Be nice, or come into a ledger covering naughtiness, primarily (3,5)

Down

1. Festive music producer to make a killing on the radio with little beauty (6,4)
2. Holiday tradition requiring mince pies (1-3)
3. Chef Delia goes over top tip for Yorkshires in workshop (6)
4. One famously haunted by terrible Bee Gees crooner and Wizzard, essentially (8,7)
5. Biblical language overwhelms our minister initially, leading to amateurish libation (8)
6. Sort of Christmas supported by royal family’s official residence (5,5)
7. Plant bearing Norwegian origin makes up winter delivery? (4)
8. Now is it time for unwrapping? (7,3)
9. University rendering Silent Night oddly creepy (10)
10. See 7a
11. See 20a
12. Cupid's opposite number is tender when heading to the North Pole (4)
13. See 4a