Office can hedge about currency trader (6,2,6)
I believe the answer is:
bureau de change
'currency trader' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'office can hedge about' is the wordplay.
'office' becomes 'bureau' (synonyms).
'about' indicates an anagram.
'can'+'hedge'='canhedge'
'canhedge' is an anagram of 'dechange'.
'bureau'+'dechange'='BUREAU DE CHANGE'
Can you help me to learn more?
(Other definitions for bureau de change that I've seen before include "financial dealings here! - with 18a" , "Where to switch currencies" .)