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 judge whether this 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' means one lot of letters go next to another.
'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" .)
