Fly from a ship (5)

I believe the answer is:

aphis

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'fly' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Perhaps you can see a link between them that I don't see?

'from a ship' is the wordplay.
'from' is an anagram indicator (from the letters).
'a'+'ship'='aship'
'aship' is an anagram of 'APHIS'.

Can you help me to learn more?

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

I've seen this clue in The Globe and Mail.

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