(3d) Popular Scottish seaside town. (5) L _ R _ S.
(7d) Devilled waterworks perhaps? (7) K _ _ N _ Y _.
(19d) Irish songwriter, playwright and novelist born in Dublin. (7, 5.) _ O _ I _ _ _
_ E _ _ N.
(27a) Discovered LSD in account I'd reopened. (4) A _ _ _ .