### Clue: Bounder to wear an item of women's underwear repeatedly for a spell it is declared (11)
### Answer: ABRACADABRA 
 ### Explanation: Definition: for a spell it is declared
 CAD(a bounder;a scoundrel) **contained in**(to wear) { [A BRA](an item of women's underwear] twice(repeatedly) }.
Answer: A term said;declared during the incantation of a spell, supposedly warding off misfortune, harm, or illness.