Crossword Genius

Stargazer's excited peek left and right (6)

Ross

I believe the answer is:

kepler

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

'stargazer's' is the definition.
Both the answer and definition are singular nouns.
Maybe there's a link between them I don't understand?

'excited peek left and right' is the wordplay.
'excited' indicates anagramming the letters.
'left' becomes 'l' (common abbreviation).
'and' is a charade indicator (letters next to each other).
'right' becomes 'r' (common abbreviation**).
'peek'+'l'='peekl'
'peekl' is an anagram of 'keple'.
'keple'+'r'='KEPLER'

Can you help me to learn more?

(Other definitions for kepler that I've seen before include "German astronomer who first stated the laws of the movements of planets" , "German astronomer who first stated the laws of planetary motion" , "Johannes ---, found laws of motion" , "Johannes -, sixteenth and seventeenth century German astronomer" .)

I've seen this clue in The Guardian.
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