Smiley perhaps one studies after English test (8)
I believe the answer is:
emoticon
'smiley' is the definition.
(I've seen this before)
'one studies after english test' is the wordplay.
'one studies' becomes 'icon' (I can't explain this - if you can you should believe this answer much more).
'after' means one lot of letters go next to another.
'english' becomes 'E' (abbreviation).
'test' becomes 'MOT' (MOT test).
'e'+'mot'='emot'
'icon' after 'emot' is 'EMOTICON'.
'perhaps' acts as a link.
Can you help me to learn more?
(Other definitions for emoticon that I've seen before include "Screen symbol expressing feeling" , "Symbol in email or text message to show joy etc" , "Graphic way of conveying feeling in e-mails" , "Computer image showing feeling" , "Representation of a facial expression in electronic messages" .)