Make barrel in an unusual way? Extraordinary (10)
I believe the answer is:
remarkable
'extraordinary' is the definition.
(similar in meaning)
'make barrel in an unusual way?' is the wordplay.
'in an unusual way?' is an anagram indicator.
'make'+'barrel'='makebarrel'
'makebarrel' anagrammed gives 'REMARKABLE'.
(Other definitions for remarkable that I've seen before include "Noteworthy" , "A wrongly-graded exam paper" , "unusual" , "Striking" , "surprising?" .)