smarty or smart·ie 
/ˈsmɑɚti/ noun
plural smart·ies /ˈsmɑɚti/ noun [count] US, informal 1 : smart-aleck
▪ Don't be such a smarty. 2 : a smart person
▪ She's a real smarty and does her job very well.
▪ Don't be such a smarty.
▪ She's a real smarty and does her job very well.
