Outlet, for example, on ship (6)
I believe the answer is:
egress
'outlet' is the definition.
(I've seen this in another clue)
'example on ship' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'on' becomes 're' (regarding).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'eg'+'re'+'ss'='EGRESS'
'for' is the link.
(Other definitions for egress that I've seen before include "At the right moment" , "Escape route" , "Issue" , "Action of going out" , "Act of exiting" .)