Crossword Genius

Company chap is effective (6)

Ross

I believe the answer is:

cogent

'effective' is the definition.
(synonyms)

'company chap' is the wordplay.
'company' becomes 'co' (abbreviation).
'chap' becomes 'gent' (both can mean a man).
'co'+'gent'='COGENT'

'is' is the link.

(Other definitions for cogent that I've seen before include "'Clear and logical, argument say (6)'" , "Convincingly argued" , "Strong" , "Clearly argued" , "Forceful - persuasive" .)

I've seen this clue in The Mirror.
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