Made a gesture of indifference (8)
I believe the answer is:
shrugged
'made a gesture of indifference' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for shrugged that I've seen before include "Made a gesture of indifference or doubt" , "showed indifference" , "Raised and dropped shoulders to indicate indifference" , "Raised one's shoulders to show indifference or ignorance" , "Moved the shoulders disclaimingly" .)