Crossword Genius

Posh agent spread viruses? (9)

Ross

I believe the answer is:

pathogens

'viruses?' is the definition.
(virus is a type of pathogen)

'posh agent spread' is the wordplay.
'spread' indicates an anagram.
'posh'+'agent'='poshagent'
'poshagent' is an anagram of 'PATHOGENS'.

I've seen this clue in The Guardian.
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