Find fault with expert in orbit (8)
I believe the answer is:
reproach
'find fault' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Perhaps there's a link between them I don't understand?
'expert in orbit' is the wordplay.
'expert' becomes 'pro' (I've seen this before).
'in' is an insertion indicator.
'orbit' becomes 'reach' ('reach' can be a synonym of 'orbit').
'pro' going within 'reach' is 'REPROACH'.
'with' is the link.
Can you help me to learn more?
(Other definitions for reproach that I've seen before include "Express disapproval to (someone)" , "Upbraid, rebuke" , "Upbraiding, censure" , "Express disapproval or disappointment" , "Castigate" .)