Remote designed for object in the sky (6)
I believe the answer is:
meteor
'object in the sky' is the definition.
'remote designed' is the wordplay.
'designed' indicates anagramming the letters (designed with the letters).
'remote' with letters rearranged gives 'METEOR'.
'for' is the link.
(Other definitions for meteor that I've seen before include "Remote sort of heavenly body" , "lump of rock" , "Body entering earth's atmosphere" , "Glowing body entering atmosphere" , "Body falling from space" .)