Good opinion of eastern power heard (6)
I believe the answer is:
esteem
'good opinion' is the definition.
(I've seen this before)
'eastern power heard' is the wordplay.
I cannot really understand how this works, but
'eastern' could be 'e' and 'e' is found in the answer.
The remaining letters 'steem' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'of' is the link.
Can you help me to learn more?
(Other definitions for esteem that I've seen before include "Admiration, regard" , "Think highly of, have regard for" , "Venerate" , "High regard as for customer" , "judge" .)