Rubbish three times gets left out (5)
I believe the answer is:
tripe
'rubbish' is the definition.
(both can mean nonsense)
'three times gets left out' is the wordplay.
I cannot quite see how this works, but
'three' could be 'tri' (prefix meaning 'three') and 'tri' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tripe that I've seen before include "Rubbish, nonsense" , "Something to eat" , "Rot" , "Edible nonsense?" , "Ruminant's stomach, prepared for cooking" .)