[Rosie] Composer? - NO
[irach] Politician - NO (except in the very vaguest of senses - never elected, never held any political office)

(Although I think you would have called him an author. He does fit the leapyear criterion, though!)

[CdM] The late great AW? - NO

[FGZstar] aka Tuj? - There is a word beginning with 'P' on the card (but you could get the answer without knowing that)
[CdM] One-hit-wonder? - YES (I'm sure he'd disagree, but history is cruel)

[FGZstar] Royalty? - NO *a little stirring in the audience*

[Software] Tafkap? - NO

[Irach] God-botherer (or god)? - NO *sounds of snoring from the audience*

[FGZstar] Music Man? - NO
[GLogin] Nobility? - YES (well aristocracy, at any rate)
[CdM] Sporting Personality? - YES *a few exchanges of glances in the audience mixed with applause*

[FGZstar] Senhor do Nascimiento (etc.)? - NO

[FGZstar] Died in Munich? - NO
[irach] True Brit? - NO

[Software] The Noob? - NO
To clarify: the audience reaction to the 'Sporting Personality' question needs to be borne in mind. I wasn't sure whether to answer yes or no to that question. Pele and the Nawab of Pataudi would definitely be Sporting Personalities.

[FGZstar] Still warm? - NO

[FGZstar] Died in last 50 years? - NO

[CdM] Chess player? - NO, mate.
[irach] Yank? - NO
[FGZstar] Any of several thousand cricketers with a 'P' somewhere in the name? - NO (remember I said you wouldn't need the 'P' to get the answer - since I'm not going to insist you match the words on the card exactly)
[Juxtapose] Died young? - NO
A small clue in the form of a clarification: if CdM's question had been 'Sportsman?', the answer would have been 'NO'.

[CdM] Bill McLaren etc? NO (He would probably have said YES in the very broadest sense, but that's not why he's known)