He holds listeners in a kind of transport (6)
I believe the answer is:
hearse
'a kind of transport' is the definition.
'he holds listeners' is the wordplay.
'holds' is an insertion indicator.
'listeners' becomes 'ears' (I've seen this in another clue).
'he' placed around 'ears' is 'HEARSE'.
'in' is the link.
(Other definitions for hearse that I've seen before include "Last time transport" , "Funeral car" , "Funeral vehicle" , "Vehicle for carrying the dead" , "Vehicle for the last trip?" .)