Mild avarice troubled leader in service (4,7)

I believe the answer is:

vice admiral

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'leader in service' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?

'mild avarice troubled' is the wordplay.
'troubled' indicates anagramming the letters.
'mild'+'avarice'='mildavarice'
'mildavarice' with letters rearranged gives 'VICE-ADMIRAL'.

Can you help me to learn more?

(Another definition for vice admiral that I've seen is " Senior naval officer".)

I've seen this clue in The Times.

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