Fur is lavish on Queen (5)

I believe the answer is:

otter

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'fur' is the definition.
(I know that otter is a type of fur)

'lavish on queen' is the wordplay.
'lavish on' becomes 'ott' (I can't justify this - if you can you should give a lot more credence to this answer).
'queen' becomes 'ER' (short for Elizabeth Regina ie Queen Elizabeth).
'ott'+'er'='OTTER'

'is' acts as a link.

Can you help me to learn more?

(Other definitions for otter that I've seen before include "Riverine mammal" , "Water creature" , "Playful aquatic animal of 'Tarka' fame" , "Water-loving animal" , "Fish-eater of the weasel family" .)

I've seen this clue in The Telegraph.

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