Crossword Genius

Show alien forms at work (4,2,4)

Ross

I believe the answer is:

life on mars

I'm a little stuck... Click here to teach me more about this clue!

'show' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'alien forms at work' is the wordplay.
'at work' indicates an anagram.
'alien'+'forms'='alienforms'
'alienforms' with letters rearranged gives 'LIFE ON MARS'.

Can you help me to learn more?

(Other definitions for life on mars that I've seen before include "A number" , "tune" .)

I've seen this clue in The Independent.
Want a hint initially instead of a full solution? Install my app