Pass on or carry (6)
I believe the answer is:
convey
This clue is a double definition.
'pass on' is the first definition.
(I've seen this before)
'carry' is the second definition.
(I know that carry is a kind of communicate)
(Other definitions for convey that I've seen before include "Carry from one place to another" , "Make known -- pass on" , "Transport or transmit" , "Transport; communicate" , "Pass on or transport" .)