### Clue: Cavalryman admitting first parts of puzzle difficult, attempts the teaser (3,6)
### Answer: LAP DANCER 
 ### Explanation: Definition: the teaser
 LANCER(a calvary soldier armed with, well, a lance) **containing**(admitting) **the 1st letters, respectively, of**(first parts of) "puzzle difficult, attempts ".
Defn: … or tease.