Crossword Puzzle Diamond heads?

Clue: Diamond heads?

Diamond heads: Abbr. (GMS with 3 letters)
Diamond ref (e.g. UMP with 3 letters)
It may turn some heads (PSST with 4 letters)
Diamond great with the line "I really didn't say everything I said" (BERRA with 5 letters)
Emulate a diamondback (RATTLE with 6 letters)
Diamond fragments (CLEAVAGES with 9 letters)
Drysdale of diamond fame (DON with 3 letters)
Big exporter of diamonds: Abbr. (ISR with 3 letters)
Very stylish diamond coup? (POSHDOUBLESTEAL with 15 letters)
He made heads roll (HENRY with 5 letters)