Feedback: overall, really fun. A few minor things I can point out, but I solved it cleanly, so it's not bad at all!
1a. "Over" isn't part of definition or wordplay, and it's difficult to call it a linking word - all parts of a clue should be part of the clue.
4a. "Swindling" and "Con" aren't synonyms - you need "swindle" to be equivalent to "con".
6a. No notes, perfect as is. Great clue.
7a. My only note here is that the simple reading's a bit nonsensical - I didn't feel misled by it.
1d. I liked the wordplay! Good and tough. I feel like the definition could be a little trickier though? I pretty much had it figured out just from that, and only needed to check my answer with the wordplay, which is a shame, since the wordplay stands on its own.
2d. No notes, excellent clue.
3d. Again, my only issue is that the simple reading doesn't have much meaning on its own.