Get round teacher, come let off steam on radio! (10)
I believe the answer is:
circumvent
'get round' is the definition.
(thesaurus)
'teacher come let off steam on radio' is the wordplay.
I cannot really see how this works, but
'let off' could be 'vent' (I've seen this in another clue) and 'vent' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for circumvent that I've seen before include "Find a way around" , "Go round" .)