Crossword Genius

Transport returning home carrying advanced alien (7)

Ross

I believe the answer is:

martian

'alien' is the definition.
(thesaurus)

'transport returning home carrying advanced' is the wordplay.
'transport' becomes 'tram' (tram is a kind of transport**).
'returning' shows that the letters should be reversed in order.
'home' becomes 'in' ('he's home' can mean 'he's in').
'carrying' indicates putting letters inside.
'advanced' becomes 'a'.
'tram' back-to-front is 'mart'.
'in' placed around 'a' is 'ian'.
'mart'+'ian'='MARTIAN'

(Other definitions for martian that I've seen before include "Sci-fi alien" , "Relating to one planet" , "One living on red planet" , "One of H. G. Wells's invaders" , "Extraterrestrial" .)

I've seen this clue in The Telegraph.
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