Parasites in record dispute about manuscript (9)

I believe the answer is:

tapeworms

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'parasites' is the definition.
The answer and definition can be both animals as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'record dispute about manuscript' is the wordplay.
'record' becomes 'tape' (synonyms).
'dispute' becomes 'row' (row is a kind of dispute).
'about' is a reversal indicator.
'manuscript' becomes 'ms' (abbreviation for manuscript).
'row' reversed gives 'wor'.
'tape'+'wor'+'ms'='TAPEWORMS'

'in' is the link.

Can you help me to learn more?

I've seen this clue in The Hindu.

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