Doctor got billed crossing river here? (10)
I believe the answer is:
Here is my best explanation:
'here?' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'doctor got billed crossing river' is the subsidiary indication.
'doctor' indicates an anagram.
'crossing' means one lot of letters goes inside another.
'river' becomes 'r'.
'gotbilled' is an anagram of 'tollbidge'.
'tollbidge' enclosing 'r' is 'tollbridge'.