Second name, Brown, ridiculously pronounced (6,3)
I believe the answer is:
number two
'second' is the definition.
(I've seen this before)
'name brown ridiculously pronounced' is the wordplay.
'name' becomes 'n' (common abbreviation e.g. on forms).
'brown' becomes 'umber' (umber is a kind of brown).
'ridiculously pronounced' becomes 'two' (I am not sure about this - if you are sure you should believe this answer much more).
'n'+'umber'+'two'='NUMBER TWO'
Can you help me to learn more?
(Other definitions for number two that I've seen before include "Dump" , "vice" , "Second in command" , "Second-in-command" , "deputy" .)