### Clue: short play, good in points and theatre's booming (8)
### Answer: PLANGENT 
 ### Explanation: Definition: booming
 "play" **minus its last letter**(short …) + G(abbrev. for "good") **contained in**(in) N,E(abbrev. for "north" and "east"/two compass point) **plus**(and) NT(abbrev. for the National Theatre).