Browse one side (7)
I believe the answer is:
surface
'side' is the definition.
(I have seen 'Top side ' mean 'surface' so perhaps 'side' could also mean 'surface')
'browse one' is the wordplay.
'browse' becomes 'surf' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'one' becomes 'ace' (ace has a value of one in some card games).
'surf'+'ace'='SURFACE'
Can you help me to learn more?
(Other definitions for surface that I've seen before include "Top part; outward appearance" , "Top level" , "Upper limit of liquid" , "Exterior" , "Top side" .)