Irish __ (3)
(Other definitions for sea that I've seen before include "The main" , "Cod's home?" , "Large body of salt water" , "Body of saltwater" , "that's easily reached from Dover?" .)
(Other definitions for setter that I've seen before include "Dog trained to point at game" , "Street (anag.)" , "Puzzle composer" , "Crossword composer" , "Bird trained to scent game" .)