Advert displayed in Hampshire ferries (5)
I believe the answer is:
refer
'advert' is the definition.
(I know that advert can be written as refer)
'displayed in hampshire ferries' is the wordplay.
'displayed in' says the answer is hidden in the clue.
'REFER' can be found hidden inside 'hampshire ferries'.
(Other definitions for refer that I've seen before include "Draw attention" , "Send or direct to a specialist" , "Mention, cite" , "If special treatment needed, GP might do this" , "Direct elsewhere" .)