Capers are transported a huge distance (6)
I believe the answer is:
parsec
'a huge distance' is the definition.
'capers are transported' is the wordplay.
'are transported' indicates anagramming the letters.
'capers' anagrammed gives 'PARSEC'.
(Other definitions for parsec that I've seen before include "unit for measuring distances" , "it takes years to get this far" , "Immense unit of distance" , "Long way" , "Unit for measurement of distance of stars" .)