Saturday Times Jumbo Cryptic 1054

[1NONLY]

Good afternoon everyone. Really stuck today and finding difficulty parse-ing the given clues. Please can you help out ?
31d ) married old republican eccentric from America once (3-9 ) ?r? - ??l?m???n

42d) hardly a favourite quote from Burns , without being funny (4,4) ?o?g ????

48d ) small drink for such a fine meal (4-2 ) ?l?? - ?? Is this slap-up ? I can parse the s + lap but not the "up "

56a ) tries a piece of cake ? More than one (9 ). ????o?e?s

53a ) tweeted about Commissioner conceding point to a city journalist (9)
C???r????

39a ) snug wraps initially hiding nothing in particular (6) ??o?s?

Sorry to have so many questions to ask but please do accept my grateful thanks.

[roslyn251254]

31d unscientific

[roslyn251254]

whoops! I think I'm in the wrong crossword!

[roslyn251254]

39a choosy
cosy=snug with H O (hiding nothing) inside

[Mamyalynne]

42 Long odds

[Mamyalynne]

53 Chirruped

[roslyn251254]

31d pre-columbian?

[vetuste_ennemi]

c(h..+o}osy

[vetuste_ennemi]

Wake up, VE!

[Chrisco]

56a Pushovers - rugby tries where one side pushes the scrum over the opposing sides goal line.

[1NONLY]

Thank you all for your very kind help. I apologise for my tardy response as I did not get any alerts from Answerbank. Checked today ( struggling again ... 1055 ) and found your very helpful answers and parse-ing . Thanks again !