Stuck on 6. They're all either band/groups or a singer who had have at least 1 top 20 UK single.
Group or band - Pre 1911 sweet firm (4,8,7)
Group or band - Fruity musicians (5,6)
Group or band - Used to be Liverpool Insects (9)
Group or band - Pitiful weepers (6,6)
Singer - British Soldier made of metal (5,6)
Singer - Pointy eared creature at auction (5,4)
Lemon Pipers (Green tamborine?) will be 2 (mistyped as 4), so I think that just leaves 2 and 3.
4 could be the Cryin' Shames if teh setter thinks their name was Crying Shames, although according to this their best chart possition looks a sif it was 22 so not Top 20
https://en.wikipedia.org/wiki/The_Cryin%27_Shames