Foinaven, for 15a the answer is all the letters apart from the first of a word meaning 'to play fruitily' (corected from fruitfly). It's usually an adjective but can be a verb.
I'm a bit unsure of 34d. I assume 'endless play' is TO(y). I suppose LIE is 'say with the aim of creating' but it's a bit weak. In general breaking a word or phrase down into its grammatical components strikes me as apoor cluing strategy.