Maybe get moving with a unit of information (8)
I believe the answer is:
megabyte
'a unit of information' is the definition.
(I know that Megabyte is a unit of information)
'maybe get moving' is the wordplay.
'moving' is an anagram indicator.
'maybe'+'get'='maybeget'
'maybeget' with letters rearranged gives 'MEGABYTE'.
'with' acts as a link.
(Other definitions for megabyte that I've seen before include "Amount of computer memory - get maybe (anag)" , "Unit of computer memory; gate by me (anag.)" , "Hundreds of thousands of words" , "Unit of information storage; get maybe (anagram)" , "1,048,576 bytes" .)