Crossword Genius

A drug gets one travelling through space? (8)

Ross

I believe the answer is:

asteroid

'one travelling through space?' is the definition.
(asteroids travel through space)

'a drug' is the wordplay.
'drug' becomes 'steroid' (type of drug).
'a'+'steroid'='ASTEROID'

'gets' acts as a link.

(Other definitions for asteroid that I've seen before include "Rocky body in orbit" , "Any of the small planets revolving around the sun" , "way-out rock" , "Bits of rock that move around the heavens" , "Small planet orbiting the Sun" .)

I've seen this clue in The Guardian.
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