Local sailor to achieve aim (6)
I believe the answer is:
target
'aim' is the definition.
(both can mean a goal or purpose)
'local sailor to achieve' is the wordplay.
'local sailor' becomes 'tar' (tar can mean a sailor. I am not sure about the 'local' bit.).
'to achieve' becomes 'get' (I've seen this in another clue).
'tar'+'get'='TARGET'
Can you help me to learn more?
(Other definitions for target that I've seen before include "Aim, ambition" , "Object to be attained by archers (or fund raisers?)" , "desired objective" , "Reference point to shoot at" , "Object to be aimed at" .)