Carnivore on rocky hill climbing over head of gazelle that stinks (6,3)

'carnivore' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'rocky hill climbing over head of gazelle that stinks' is the wordplay.
'rocky hill' becomes 'tor' (I've seen this in another clue).
'climbing' says the letters should be written in reverse (in a down clue, letters climb up).
'over' is a reversal indicator.
'head of' says to take the initial letters.
'that stinks' becomes 'genet' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The first letter of 'gazelle' is 'g'.
'tor' back-to-front is 'rot'.
'g'+'genet'='ggenet'
'ggenet' backwards is 'tenegg'.
'rot'+'tenegg'='ROTTEN EGG'

'on' is the link.

Can you help me to learn more?