Crossword Genius

So rot affected the trunk (5)

Ross

I believe the answer is:

torso

'the trunk' is the definition.
('torso' can be a synonym of 'trunk')

'so rot affected' is the wordplay.
'affected' indicates an anagram.
'so'+'rot'='sorot'
'sorot' with letters rearranged gives 'TORSO'.

(Other definitions for torso that I've seen before include "Body without head, neck and limbs" , "Trunk of human body" , "part of body will be found" , "Roots out in trunk of the body" , "Body's trunk" .)

I've seen this clue in The Telegraph.
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