If your are looking for a clip art image of scissors or a text icon of scissors, in screen-top menu go Edit>Special Characters.
When Special Characters palette opens, choose Symbols>Miscellaneous Symbols.
There are several scissors characters there. Choose a font variation click and drag into your document. Some font variation include scissors sitting on a dotted line – to indicate where to cut out a coupon.
This character will behave like a letter in text. But if you want a graphic image of scissors make a screenshot (Command+Shift+4) and import it into your document.
Character Palette has masses of clip art images, so check what's there before searching on the internet.