Separate opinion not considered (4,5)
I believe the answer is:
take apart
'separate' is the definition.
(synonyms)
'opinion not considered' is the wordplay.
'opinion' becomes 'take' (I've seen this in another clue).
'not considered' becomes 'apart' (I am not sure about this - if you are sure you should believe this answer much more).
'take'+'apart'='TAKE APART'
Can you help me to learn more?
(Other definitions for take apart that I've seen before include "censure" , "Pull to pieces" , "roast" , "Strip" , "Disassemble" .)