Time aboard cosy starship is working for scientists (15)

I believe the answer is:

astrophysicists

'scientists' is the definition.
(astrophysicist is a kind of scientist)

'time aboard cosy starship is working' is the wordplay.
'time' becomes 't' (abbreviation).
'aboard' is an insertion indicator.
'working' indicates anagramming the letters.
'cosy'+'starship'+'is'='cosystarshipis'
'cosystarshipis' anagrammed gives 'asrophysicists'.
't' inserted into 'asrophysicists' is 'ASTROPHYSICISTS'.

'for' acts as a link.

I've seen this clue in The Times and The Telegraph.

Want a hint initially instead of a full solution? Install my app