### Clue: Dance sexily at first with topless Serpent (5)
### Answer: SAMBA 
 ### Explanation: Definition: Dance
 **1st letter of**(… at first) "sexily" **plus**(with) "mamba"(a highly venomous African snake/serpent) **minus ****its 1st letter**(topless …).
A natural exponent, dancing sexily: