Crossword Genius

Setting out to Saturn, a traveller in space (9)

Ross

I believe the answer is:

astronaut

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

'a traveller in space' is the definition.
I can't tell whether this definition defines the answer.

'setting out to saturn' is the wordplay.
'setting' becomes 'a' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'out' indicates anagramming the letters.
'to'+'saturn'='tosaturn'
'tosaturn' anagrammed gives 'stronaut'.
'a'+'stronaut'='ASTRONAUT'

Can you help me to learn more?

(Other definitions for astronaut that I've seen before include "Space voyager" , "Skier" , "For member of high-flying mission" , "High-flier" , "Space explorer" .)

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