Hare or rabbit running through lavish promo gallery set up (9)
I believe the answer is:
lagomorph
'hare or rabbit running' is the definition.
I can't tell whether this defines the answer.
'through lavish promo gallery set up' is the wordplay.
'through' indicates the answer is hidden within the clue.
'set up' says the letters should be written backwards (in a down clue, letters go up).
'hpromogal' can be found hidden inside 'lavish promo gallery'.
'hpromogal' back-to-front is 'LAGOMORPH'.
Can you help me to learn more?
(Another definition for lagomorph that I've seen is " Rabbit, for instance".)