Gain muscle but primarily lose fat

Hi all

I'm a 61 year old guy and I've been training for years but no matter how hard I train I just don't see the effort pay off any more; I also have a flabby waist that I just can't shift; actually, that's the main reason for asking this question tbh; I want something that will help me build a bit of muscle (I'm not going daft here; just some results from the hard work is all I want) but primarily to help get rid of the flabbiness.

I don't know what to take or how much of it; a guy in a gym on holiday mentioned Anavar but that's all I have as far as guidance is concerned lol! Could someone please advise what a guy of my age with my goals would need to order? I guess oral would be easiest as I'm not in a position to store anything in a fridge (I don't know if injectables need this but I'm guessing so); basically I'm assuming that injectables are more of an issue to keep under the radar as it were.

Thanks!