Short bar put out (6)
I believe the answer is:
abrupt
'short' is the definition.
(thesaurus)
'bar put out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'bar'+'put'='barput'
'barput' anagrammed gives 'ABRUPT'.
(Other definitions for abrupt that I've seen before include "Curt; precipitous" , "using minimal language?" , "Sudden, maybe rude" , "Short and brusque" , "Curt and brief" .)