Smitten, certain hosts caught during a lapse (10)
I believe the answer is:
fascinated
'smitten' is the definition.
(thesaurus)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for fascinated that I've seen before include "Captivated" , "Irresistibly interested" , "captured" , "Irresistably attracted" , "spellbound" .)