Cryptic crossword No 3,572

Across

1. Loves eating Snail Pie... ultimately not butter? (4)
2. Infernal Knight that'll make you swoon (6)
3. Too low to hear reason, no closer to peace, breaking in force I see (10)
4. Mo leaving sample originally by junction to make what's owed (4)
5. What's concealed in Deltarune at ending is left on the table? (7)
6. Goes wrong at centre of sanctuaries: roof discharged? Look up yourself (7)
7. Entrances to overflowing gushers are marked with ancient script (4)
8. Brought about concert, intoned banger: principally not soft, pretty derivative of metal (8)
9. Send lead character to home address (4)
10. Partners can barely start to grieve with difficulty (4)
11. King found underground meets you in dancer's costume (4)
12. Undertale's opening initially carries little weight (5)
13. It's secreted by woman with touches of enchantment, suffering tremendous remorse, having gone astray (8)
14. Girl at first sprinted down -- and almost consumed by irrational Nothing instrument (5,5)
15. Part of gun short protagonist loaded with most of ammo (6)
16. Like electronic Queen, oddly usable (5)

Down

1. Sceptical human acting as cage for energy (6)
2. Party by gold gate (4)
3. One picks up signals from Noelle, extremely antsy at heart, uplifted; hugged by woman of prophecy (7)
4. Holiday daughter? One missing -- most terrible (4)
5. Knockout book by old reptilian creature (6)
6. Quiet space near middle of organ pipes (5)
7. Soon promote social evening (5,3)
8. Holy place, in whole overwhelming, can't corrupt (7)
9. Mother went down, mostly swallowing empty breakfast (6)
10. At last, Cap'n Cakes only even again dance (3,3)
11. Make tea -- raised power by drinks (4)
12. Shut up about good Susie's tail, dick! (5)
13. Greeting crowds round large festival (4)
14. Air hope, surprisingly engulfing young at core with joy (8)
15. Time for Carol, essentially rudest representative, to make back of room cold (8)
16. Thinnest of amalgamations at crux smiles strangely, encapsulates bit of tension (8)