Blown away — and so is the organisation? (10)
I believe the answer is:
astonished
'blown away' is the definition.
(to blow someone away is to astonish them)
'and so is the organisation?' is the wordplay.
'organisation?' indicates anagramming the letters (I've seen 'organisation' mean this).
'and'+'so'+'is'+'the'='andsoisthe'
'andsoisthe' is an anagram of 'ASTONISHED'.
(Other definitions for astonished that I've seen before include "Bowled over" , "Greatly surprised" , "Taken by surprise" , "Amazed" , "Gobsmacked" .)