Tricks new users (5)
I believe the answer is:
ruses
'tricks' is the definition.
(I've seen this before)
'new users' is the wordplay.
'new' is an anagram indicator.
'users' anagrammed gives 'RUSES'.
(Other definitions for ruses that I've seen before include "Subterfuges" , "Clever stratagems" , "Tactics" , "Clever plans designed to deceive" , "Dodges" .)