No more stars could be revealed by them (11)

I believe the answer is:

astronomers

I'm a little stuck... Click here to teach me more about this clue!

'them' is the definition.
I can't judge whether this defines the answer.

'no more stars could be' is the wordplay.
'could be' indicates an anagram.
'no'+'more'+'stars'='nomorestars'
'nomorestars' is an anagram of 'ASTRONOMERS'.

'revealed by' is the link.

Can you help me to learn more?

(Other definitions for astronomers that I've seen before include "Moon-starers (anag)" , "Monster oars (anag.)" .)

I've seen this clue in The Irish Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.