Very famous person playing games with sailor (8)
I believe the answer is:
megastar
'very famous person' is the definition.
(I've seen this before)
'playing games with sailor' is the wordplay.
'playing' indicates anagramming the letters.
'with' says to put letters next to each other.
'sailor' becomes 'tar' (tar is a kind of sailor).
'games' with letters rearranged gives 'megas'.
'megas'+'tar'='MEGASTAR'
(Other definitions for megastar that I've seen before include "Huge celebrity" , "Sensational person" , "Dazzlingly successful person" , "One v. famous" , "famous entertainer" .)