Time to take a joke with dignity (7)
I believe the answer is:
majesty
'dignity' is the definition.
(I have seen 'Regal dignity ' mean 'majesty' so perhaps 'dignity' could also mean 'majesty')
'time to take a joke with' is the wordplay.
'time' becomes 'may' (I've seen this before).
'to take' is an insertion indicator.
'a joke with' becomes 'jest' (I am not sure about this - if you are sure you should believe this answer much more).
'may' placed around 'jest' is 'MAJESTY'.
Can you help me to learn more?
(Other definitions for majesty that I've seen before include "Impressive beauty" , "Grandeur" , "Splendour" , "Regal dignity" , "August character" .)