Sells beam off, above reproach (9)
I believe the answer is:
blameless
'sells beam off above reproach' is the definition.
I can't tell whether this definition defines the answer.
'sells beam off' is the wordplay.
'off' indicates anagramming the letters.
'sells'+'beam'='sellsbeam'
'sellsbeam' anagrammed gives 'BLAMELESS'.
Can you help me to learn more?
(Other definitions for blameless that I've seen before include "Irreproachable" , "Without culpability, innocent" .)