Greeting sailor with universal point (6)
I believe the answer is:
salute
'greeting' is the definition.
(salute is a kind of greeting)
'sailor with universal point' is the wordplay.
'sailor' becomes 'salt' (salt is a kind of sailor**).
'with' means one lot of letters goes inside another.
'universal' becomes 'u'.
'point' becomes 'e' (E is an example).
'salt' going around 'u' is 'salut'.
'salut'+'e'='SALUTE'
(Other definitions for salute that I've seen before include "Gesture of greeting" , "Greet with a sign" , "Hail, greet" , "Ceremonial firing of guns" , "Hail with a gesture" .)