It can be a nuisance when a hip's broken (5)

I believe the answer is:

aphis

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'it can be a nuisance' is the definition.
The definition suggests a singular noun which matches the answer.

'a hip's broken' is the wordplay.
'broken' indicates an anagram.
'hips' anagrammed gives 'phis'.
'a'+'phis'='APHIS'

'when' acts as a link.

Can you help me to learn more?

(Other definitions for aphis that I've seen before include "Sap-sucking garden pest" , "Small insect" , "Greenfly" , "Plant louse" , "sucker?" .)

I've seen this clue in the Evening Standard.

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