### Clue: Girl's greeting abrupt and outwardly surly (6)
### Answer: CURTSY 
 ### Explanation: Definition: Girl's greeting
  CURT(abrupt,terse) **plus**(and) SY(outermost letters,outwardly of "surly")
Defn:  Also spelled curtsey, a variant of courtesy.  Interestingly, it did not start as being an exclusively feminine,girl's greeting