Times Cryptic Jumbo 1448

[NeilMunro]

Very grateful for all help with these clues please.
20ac: “It has drawn some in place of austerity (6).”
27dn: “Slashes Note, one found beneath papers (6).”
37ac: “Lay in cold, white shroud, close to ground (5).”
41ac: “You and your endless anniversaries finally must stop - with this one? (10).”

[donny48]

41 thousandth

[donny48]

37 hoard

[donny48]

20 sparta

[Lie-in King]

20a Sparta 'part' (some, in) 's(ex) a(ppeal)' (it)
27d Solidi - 'sol' (note) + 'i' (1, beneath) 'ID' (papers)
37a Hoard - 'hoar' (frost, white shroud) + '(groun)d' (close)
41a Thousandth - '(anniversarie)s' (to stop; go in) 'thou and th(y)'

[NeilMunro]

Many thanks!!!