They could be redirected to a star/sun? (10)
I believe the answer is:
astronauts
'they' is the definition.
Both the answer and definition are plural nouns.
Maybe there's an association between them I don't understand?
'redirected to a starsun?' is the wordplay.
'redirected' is an anagram indicator.
'to'+'a'+'starsun'='toastarsun'
'toastarsun' is an anagram of 'ASTRONAUTS'.
'could be' acts as a link.
Can you help me to learn more?
(Other definitions for astronauts that I've seen before include "high fliers" , "Space voyagers" , "long-distance travellers" , "Spacemen" .)