Easy Rubbish

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Across
  1. 1. Clock app singer in Shake Shack (5)
  2. 4. one of the funniest posters is also a country in the Middle East (6)
  3. 5. fortified for ships or good times (4)
  4. 7. superlative location to go out on strep (7)
  5. 8. c heli-scam? nonsense! Essential for life (9)
Down
  1. 2. a third album knows pea messily (5,3)
  2. 3. Josh lonely, confused, made this (5,5)
  3. 6. cheeky creature found in peanut rolls (5)
  4. 9. Horrid man emitted by scent glands (4)