NUB

Sun, 28 Apr '24

Small lump

Sun, 10 Dec '23

Bump on a log, say

Fri, 28 Apr '23

Lump

Wed, 8 Mar '23

Gist

Thu, 25 Aug '22

Well-used pencil, say

Sat, 1 Jan '22

Central point

Sun, 23 May '21

Crux of the matter