Kind word about husband doesn't last (9)

I believe the answer is:

shortterm

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'doesn't last' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'kind word about husband' is the wordplay.
'kind' becomes 'sort' (synonyms).
'word' becomes 'term' (term is a kind of word).
'about' indicates putting letters inside.
'husband' becomes 'h' (abbreviation).
'sort'+'term'='sortterm'
'sortterm' placed around 'h' is 'SHORTTERM'.

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I've seen this clue in The Daily Express.

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