Surprise (4)
'surprise' is the definition.
(to startle someone is to surprise or shock them)
This is all the clue.
(Other definitions for startle that I've seen before include "Surprise with starlet" , "Cause to feel sudden alarm" , "Scare" , "Surprise with fright" , "Surprise greatly, alarm" .)
'surprise' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for treat that I've seen before include "Entertain at one's own expense" , "Something that causes special pleasure or delight" , "Give care to; surprise gift" , "Handle - delightful surprise" , "Medicate" .)
'surprise' is the definition.
(stunning is a kind of surprising)
This is all the clue.
(Other definitions for stun that I've seen before include "Concuss, stupefy" , "what a cracker may do?" , "Daze or bewilder" , "deliver a knock-out blow" , "Daze, stupify" .)