Pest that can ruin a ship (5)

I believe the answer is:

aphis

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'pest that' is the definition.
'aphis' can be an answer for 'pest' (I've seen this before). I am not sure about the rest of the definition.

'ruin a ship' is the wordplay.
'ruin' is an anagram indicator.
'a'+'ship'='aship'
'aship' with letters rearranged gives 'APHIS'.

'can' 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" , "Greenfly" , "Small insect" , "sucker?" , "Plant louse" .)

I've seen this clue in the Evening Standard.

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