At large throne, unfazed (2,3,3)
I believe the answer is:
on the run
'at large' is the definition.
(I've seen this in another clue)
'throne unfazed' is the wordplay.
I cannot quite see how this works, but
an anagram of 'throne' is 'onther' which is within the answer.
The remaining letters 'un' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for on the run that I've seen before include "Pursued by the police" , "Where bobsleigh competitor is found" , "retreating?" , "Having escaped custody" , "one after the other" .)