Insects flying round thrones (7)
I believe the answer is:
hornets
'insects' is the definition.
(hornet is a kind of insect)
'round thrones' is the wordplay.
'round' is an anagram indicator.
'thrones' with letters rearranged gives 'HORNETS'.
'flying' is the link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for hornets that I've seen before include "Large type of wasps" , "Large stinging wasps" .)