Definition of linkman:
(n) :
A man who acts as a link or connection.
(n) :
(broadcasting) A presenter who provides the connecting verbiage between a number of separate items in a broadcast.
(n) :
(rugby) A player who uses speed and dexterity to keep an attacking team's downfield progress fluid.
(n) :
(historical) An adult linkboy; one bearing a torch or light.