Intrepid choir touring round Spain (6)
I believe the answer is:
heroic
'intrepid' is the definition.
(thesaurus)
'choir touring round spain' is the wordplay.
'touring' indicates an anagram (touring can mean moving around).
'round' is an insertion indicator.
'spain' becomes 'e' (abbreviation for Espana).
'choir' is an anagram of 'hroic'.
'hroic' enclosing 'e' is 'HEROIC'.
(Other definitions for heroic that I've seen before include "Imposing or impressive: very courageous" , "Fearless, valiant" , "Epic" , "Superhuman (efforts)" , "Showing extreme courage" .)