Eroticism somehow of equal measure? (9)

Ross

I believe the answer is:

isometric

'of equal measure?' is the definition.

'eroticism somehow' is the wordplay.
'somehow' is an anagram indicator.
'eroticism' is an anagram of 'ISOMETRIC'.

(Other definitions for isometric that I've seen before include "Having equal dimensions" , "Like some exercises" , "equal in measurement" , "Type of angled drawing to scale - eroticism (anag)" , "regarding muscular action" .)

I've seen this clue in The Times.

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