Sharon as a little mermaid? (5)
I believe the answer is:
ariel
I believe this is a double definition.
'sharon' is the first definition.
(Israeli prime minister Ariel Sharon)
'a little mermaid?' is the second definition.
(main character in Disney's The Little Mermaid)
'as' is the link.
(Other definitions for ariel that I've seen before include "Enchanting islander" , "Moulding round top of wall" , "Shakespearian sprite - Uranus satellite - gazelle" , "Heavenly body" , "Swallows" .)