Get rid of alien time, perhaps (9)
I believe the answer is:
eliminate
'get rid' is the definition.
(I've seen this before)
'alien time perhaps' is the wordplay.
'perhaps' indicates an anagram.
'alien'+'time'='alientime'
'alientime' is an anagram of 'ELIMINATE'.
'of' acts as a link.
(Other definitions for eliminate that I've seen before include "Eradicate" , "Completely remove, get rid of" , "Take out" , "Get rid of, or exclude from further stage of game" , "waste" .)