Changes V-sign (6)

I believe the answer is:

varies

'changes' is the definition.
('vary' can be a synonym of 'change')

'v-sign' is the wordplay.
'sign' becomes 'aries' (star sign).
'v'+'aries'='VARIES'

(Other definitions for varies that I've seen before include "'Alters, changes (6)'" , "Changes, deviates" , "Makes or becomes different, changes" , "Differs, changes" , "Tends to change" .)

I've seen this clue in The Telegraph.

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