I get up having rested first and take off (8)
I believe the answer is:
satirise
'i get up' is the definition.
I can't tell whether this definition defines the answer.
'rested first and take off' is the wordplay.
'rested' becomes 'sat' (to sit is to rest).
'first' becomes 'i' (I in Roman numerals eg Elizabeth I).
'and' is a charade indicator (letters next to each other).
'take off' becomes 'rise' (I've seen this in another clue).
'sat'+'i'+'rise'='SATIRISE'
'having' acts as a link.
Can you help me to learn more?
(Other definitions for satirise that I've seen before include "Ridicule with witty words" , "Use humour to insult or expose stupidity" , "Insult or scorn with witticisms" , "Ridicule with irony" , "parody" .)