Daring arrangement for English choir (6)
I believe the answer is:
heroic
'daring' is the definition.
(thesaurus)
'arrangement for english choir' is the wordplay.
'arrangement for' indicates an anagram (I've seen this in other clues).
'english' becomes 'e' (abbreviation).
'e'+'choir'='echoir'
'echoir' is an anagram of 'HEROIC'.
(Other definitions for heroic that I've seen before include "larger than life" , "Epic" , "Extravagant" , "Imposing or impressive: very courageous" , "Supremely courageous and brave" .)