It's crazy to stop stories by saint (7)
I believe the answer is:
bananas
'it's crazy' is the definition.
(thesaurus)
'stop stories by saint' is the wordplay.
'stop' becomes 'ban' (I've seen this in another clue).
'stories' becomes 'ana' (archaic term for anecdotes or gossip).
'by' says to put letters next to each other.
'saint' becomes 's'.
'ban'+'ana'+'s'='BANANAS'
'to' is the link.
(Other definitions for bananas that I've seen before include "Fruit - nuts" , "Crazed" , "Mad - curved fruits" , "bats" , "off 27 [TROLLEY]" .)