Understand cheat (4,2)
I believe the answer is:
take in
I believe this is a double definition.
'understand' is the first definition.
(I've seen this before)
'cheat' is the second definition.
(I've seen this before)
(Other definitions for take in that I've seen before include "Grasp - admit - fool" , "Register (information)" , "contract" , "Cheat" , "Shelter - hoodwink" .)