I heard that your ego rarely bears being upset (5)
I believe the answer is:
roger
'i heard that your' is the definition.
The definition and answer are not the same part of speech.
'ego rarely bears being upset' is the wordplay.
'rarely' becomes 'rr' (I am not sure about this - if you are sure you should believe this answer much more).
'bears' indicates putting letters inside.
'being upset' says the letters should be written backwards.
'ego' going inside 'rr' is 'regor'.
'regor' written backwards gives 'ROGER'.
Can you help me to learn more?
(Other definitions for roger that I've seen before include "Radio confirmation" , "One like de Coverley" , "- - Moore (007)" , "I have heard on the radio" , "Received (in radio comms)" .)