Mislaid at sea around ship? You get the sack (9)
I believe the answer is:
dismissal
'the sack' is the definition.
(sacking is dismissal from one's job)
'mislaid at sea around ship?' is the wordplay.
'at sea' is an anagram indicator.
'around' means one lot of letters goes inside another.
'ship?' becomes 'SS' (prefix in ship names eg SS Great Britain).
'mislaid' is an anagram of 'dismial'.
'dismial' placed around 'ss' is 'DISMISSAL'.
'you get' is the link.
(Other definitions for dismissal that I've seen before include "ending" , "Sacking; end of innings" , "Process of being sent away" , "sending off" , "removal from office" .)