American off to Saturn? (9)
I believe the answer is:
astronaut
'american off to saturn?' is the definition.
I can't judge whether this definition defines the answer.
'american off to saturn?' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'off' indicates an anagram.
'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 "Buzz Aldrin, for example" , "spaceman" , "Space voyager" , "Person trained to travel in a spacecraft" , "Skier" .)