Captain's area on ship missing first raised strip of land (5)
I believe the answer is:
ridge
'raised strip of land' is the definition.
(ridge can mean a strip of land)
'captain's area on ship missing first' is the wordplay.
'captain's area on ship' becomes 'bridge' (a captain stays on the bridge of a ship).
'missing first' means to remove the first letter.
'bridge' with its initial letter removed is 'RIDGE'.
(Other definitions for ridge that I've seen before include "Narrow elevated strip" , "Elongated area of high pressure" , "Hog's back" , "Narrow raised band on a surface" , "Rooftop" .)