Concerning brewing smooth beer (10)
I believe the answer is:
bothersome
'concerning brewing smooth beer' is the definition.
I can't tell whether this definition defines the answer.
'brewing smooth beer' is the wordplay.
'brewing' indicates an anagram.
'smooth'+'beer'='smoothbeer'
'smoothbeer' with letters rearranged gives 'BOTHERSOME'.
Can you help me to learn more?
(Other definitions for bothersome that I've seen before include "Irritating" , "Annoying" , "causing trouble" , "Trying" , "A pain" .)