Requesting to inform about nothing legal (10)
I believe the answer is:
soliciting
'requesting' is the definition.
(soliciting is a kind of requesting)
'inform about nothing legal' is the wordplay.
'inform' becomes 'sing' (I've seen this in other clues).
'about' is an insertion indicator.
'nothing' becomes 'O' (looks like zero - 0).
'legal' becomes 'licit' (similar in meaning).
'o'+'licit'='olicit'
'sing' placed around 'olicit' is 'SOLICITING'.
'to' is the link.
(Another definition for soliciting that I've seen is " Touting for work (as a prostitute)".)