A declaration of the intent to have a clear round (9)
I believe the answer is:
manifesto
'a declaration' is the definition.
(I know that declaration can be written as manifesto)
'clear round' is the wordplay.
'clear' becomes 'manifest' (synonyms).
'round' becomes 'o' (o is a circular letter).
'manifest'+'o'='MANIFESTO'
'of the intent to have a' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for manifesto that I've seen before include "Statement of policies" , "Public policy declaration" , "Proclamation" , "Publication containing political programme" , "See 6" .)