That magic word, bitte! (6)
I believe the answer is:
please
If this is the answer I cannot explain how the clue works.
Can you help me to learn more?
(Other definitions for please that I've seen before include "Want" , "Polite request - make someone happy" , "(Word used in) asking or accepting politely" , "See pal (anag) -- charm" , "It's said to help" .)