Fellow is working for disreputable types (3,5)

I believe the answer is:

low lifes

'disreputable types' is the definition.
(a low life is a disreputable person)

'fellow is working' is the wordplay.
'working' indicates anagramming the letters.
'fellow'+'is'='fellowis'
'fellowis' is an anagram of 'LOW LIFES'.

'for' acts as a link.

I've seen this clue in The Telegraph.

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