It's risqu? losing the head over local information bureau (6)
I believe the answer is:
agency
'bureau' is the definition.
(I know this)
'it's risqu? losing the head over local information' is the wordplay.
I cannot quite see how this works, but
'information' could be 'gen' (gen can informally mean information) and 'gen' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for agency that I've seen before include "Cagney (anag.)" , "Government office" , "Intervention producing a particular effect" , "Business that conducts business on behalf of others" , "Function of one who acts for another" .)