Crossword Genius

Red activists get organised — that shows lots of guts! (9,6)

Ross

I believe the answer is:

digestive tracts

'lots of guts' is the definition.

'red activists get organised' is the wordplay.
'organised' is an anagram indicator.
'red'+'activists'+'get'='redactivistsget'
'redactivistsget' anagrammed gives 'DIGESTIVE TRACTS'.

'that shows' is the link.

I've seen this clue in The Guardian.
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