Crossword Genius

Measure by sexism? An odd activity! (4,4,5)


I believe the answer is:

body mass index

'measure' is the definition.
(measure of being overweight or underweight)

'by sexism? an odd activity' is the wordplay.
'activity' indicates anagramming the letters (letters become active).
'bysexismanodd' with letters rearranged gives 'BODY MASS INDEX'.

(Other definitions for body mass index that I've seen before include "rating figure?" , "A measure of fatness" , "Measure of obesity" , "Measure of someone's weight in relation to height" , "Measure of fat/muscle ratio" .)

I've seen this clue in The Guardian.
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