Crossword Genius

Offensive sign -- until redesigned (9)

Ross

I believe the answer is:

insulting

'offensive' is the definition.
('insulting' can be similar in meaning to 'offensive')

'sign until redesigned' is the wordplay.
'redesigned' indicates an anagram.
'sign'+'until'='signuntil'
'signuntil' is an anagram of 'INSULTING'.

(Other definitions for insulting that I've seen before include "Treating with disrespect" , "What offender's doing" , "Offensive" .)

I've seen this clue in The Telegraph.
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