Blamed IRA for explosion? Excellent (9)
I believe the answer is:
admirable
'excellent' is the definition.
(I've seen this before)
'blamed ira for explosion?' is the wordplay.
'for explosion?' indicates anagramming the letters (I've seen 'for explosion' mean this).
'blamed'+'ira'='blamedira'
'blamedira' is an anagram of 'ADMIRABLE'.
(Other definitions for admirable that I've seen before include "Excellent" , "Commendable" , "Worthy of being held in high opinion" , "Praiseworthy" , "Deserving of esteem" .)