Way out, for example, on ship (6)
I believe the answer is:
egress
'way out' is the definition.
(I've seen this before)
'example on ship' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'on' becomes 're' ('on' can be mean 'with reference to').
'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 "Way out, departure" , "W ay out" , "Emergence, coming out" , "Action of going out" , "The act of leaving a building" .)