Hi alid5 - yes I thought the same, couldn't see how it fit in.
Calibax has just given me the answer to one that crosses the above.
In the word 'gratefully' - the 'f' comes at the end of the word, so with the word being B - - - F, I now think that the answer will be 'BLUFF'. I think this is where the 'deceiving' comes in.