Obscure type of weapon Greek character brought round (7)
I believe the answer is:
unclear
'obscure' is the definition.
(unclear can mean obscure or vague)
'type of weapon greek character brought round' is the wordplay.
I cannot really see how this works, but
'character' could be 'lear' (I have seen 'Tragic character' mean 'lear' so perhaps 'character' could also mean 'lear') and 'lear' is located in the answer.
The remaining letters 'unc' 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).
Can you help me to learn more?
(Other definitions for unclear that I've seen before include "Not apparent" , "Not transparent or intelligible" , "Not certain" , "Not obvious, obscure" , "Not easy to grasp" .)