Thug from Hollywood, possibly, in body of water (6)
I believe the answer is:
lagoon
This clue could be a double definition.
'thug from hollywood' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'body of water' is the second definition.
(lagoon is a kind of body of water)
'possibly in' is the link.
Can you help me to learn more?
(Other definitions for lagoon that I've seen before include "Atoll's enclosed water" , "Water protected by a coral reef" , "Stretch of water within an atoll" , "Lake inside coral reef" , "Area inside atoll" .)