Thank you Tony, Andyc, Ari, AB, Aqer, HelenB, and Jazz Girl. Tony's got 'em all. Good shot Andy (all but one). Hope they were enjoyable.
I post my pre-prepared solution, ONLY for completion. They've already been explained.
1. (charade) G (capital Ground) + RIPE (mature) = GRIPE = beef (colloq)
2. (cryptic) IRISH SEA
3. (charade) TO + A + DIE (pass on) + S(Snowden’s ‘top’) = TOADIES = crawls
4. (complex anag = production) of “figure-skating” – “gigues” = RATFINK = a mean, deceitful, despicable person (exact Chambers def)
5. COMMAND = directive + EER = top (p)eer = COMMANDEER = appropriate