Dour qualifiers contrarily delivered (8)
I believe the answer is:
stubborn
'dour' is the definition.
(similar in meaning)
'qualifiers contrarily delivered' is the wordplay.
'qualifiers contrarily' becomes 'stub' (I am not sure about this - if you are sure you should believe this answer much more).
'delivered' becomes 'born'.
'stub'+'born'='STUBBORN'
Can you help me to learn more?
(Other definitions for stubborn that I've seen before include "Obstinate, pig-headed" , "Determined" , "Sticky" , "hard to bend" , "Resistant to change" .)