Foremost of adventurers travelling to Saturn? (9)
I believe the answer is:
astronaut
'foremost of adventurers travelling to saturn?' is the definition.
I can't judge whether this definition defines the answer.
'foremost of adventurers travelling to saturn?' is the wordplay.
'foremost of' indicates taking the first letters.
'travelling' is an anagram indicator.
The first letter of 'adventurers' is 'a'.
'to'+'saturn'='tosaturn'
'tosaturn' with letters rearranged gives 'stronaut'.
'a'+'stronaut'='ASTRONAUT'
(Other definitions for astronaut that I've seen before include "Santa tour for space traveller" , "Skier" , "One travelling in space" , "Armstrong or Sharman, say" , "High-flyer" .)