Crossword Genius

A director in nursing home, male, is attacking a person's character (2,7)

Ross

I believe the answer is:

ad hominem

'attacking a person's character' is the definition.
(an ad hominem argument attacks one's character)

'a director in nursing home male' is the wordplay.
'director' becomes 'd'.
'in' becomes 'home' ('he's in' can mean 'he's home').
'nursing' indicates putting letters inside.
'home' becomes 'in' ('he's home' can mean 'he's in').
'male' becomes 'm' (common abbreviation).
'home' going around 'in' is 'homine'.
'a'+'d'+'homine'+'m'='AD HOMINEM'

'is' acts as a link.

(Other definitions for ad hominem that I've seen before include "Directed at particular person" , "(Of an argument) personal rather than objective (Latin)" , "Relating to particular individual" , "Latin phrase for argument that attacks opponent rather than debates the issue" , "to man personally" .)

I've seen this clue in The Independent.
Want a hint initially instead of a full solution? Install my app