Elegant gait on catwalk? Quite the opposite (7)

I believe the answer is:

dogtrot

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'catwalk? quite the opposite' is the definition.
I can't tell whether this defines the answer.

'elegant gait on' is the wordplay.
'elegant' becomes 'dog' (I am not sure about this - if you are sure you should believe this answer much more).
'gait' becomes 'trot' (trot is a kind of gait).
'on' is a charade indicator (letters next to each other).
'dog'+'trot'='DOGTROT'

Can you help me to learn more?

(Other definitions for dogtrot that I've seen before include "Pace between walking and running" , "Gentle paced run" , "Slowish running pace of canine analogy" , "Gentle easy pace" , "An easy run of canine origin" .)

I've seen this clue in The Irish Times.

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