Express opinion forcefully and unabridged, then weep (2,4,3)
I believe the answer is:
in full cry
'express opinion forcefully and unabridged' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'weep' is the wordplay.
I cannot quite understand how this works, but
'weep' could be 'cry' (synonyms) and 'cry' is found within the answer.
The remaining letters 'infull' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'then' acts as a link.
Can you help me to learn more?
(Other definitions for in full cry that I've seen before include "A pack of hounds may be" , "Hotly pursuing" , "hounds are on the scent?" .)