Shows current distance transported (9)
I believe the answer is:
indicates
'shows' is the definition.
('indicate' can be a synonym of 'show')
'current distance transported' is the wordplay.
'current' becomes 'i' (symbol for electric current).
'transported' indicates anagramming the letters.
'distance' anagrammed gives 'ndicates'.
'i'+'ndicates'='INDICATES'
(Other definitions for indicates that I've seen before include "Signals, suggests" , "Shows, signals" , "Signals or points to" .)