1. Joker with trick taking in broadcasters etc. (8) COMEDIAN
The answer is ‘joker’ which you get from trick, being ‘con’, taking in broadcasters etc i.e. media. Con takes in media making comedian.
2. Go overseas? Good to enter Arab state? (8) EMIGRATE
The answer is go overseas. Good is often abbreviated to ‘g’, so g enters an arab state which is emirate, making emigrate.
3. Sound of pleasure subsequently covering sound of disgust (8) LAUGHTER
The answer is sound of pleasure. Subsequently is later which covers a sound of disgust which is ‘ugh’. Put ugh in later and you get laughter.