Sunday Times Prize Crossword 4640 Sunday May 3Rd 2015

[mercedita]

13A US sailor raced back to entertain group of workers (7) 20A One sharing top billing at gallery close to London's National (5,5). And in 2D Goat with small porridge container for Goldilocks (9), why is it "buttercup"? Or is it "butternut "? and lastly, I can't parse 23D Extremely sexy guy fro Cardiff? Initially one's found in bed! (5). Can Dai be spelt Day? Thanks!

[Lie-in King]

13a Decatur - 'T(rade) U(nion)' (in) 'raced' (back) -

http://www.collinsdictionary.com/dictionary/english/decatur

2d Buttercup -

http://www.collinsdictionary.com/dictionary/english/goldilocks

23d Daisy (in [flower] bed) - 'Dai' (from Cardiff, initially; first) + 's(ex)y' (extremely)

[Mamyalynne]

13 Decatur - Raced (back) around TU (Trade Union)

[mercedita]

Thank you, Lie-in-King & Mamyalynne. I'd never hear of "Decatur". Can you still help me with 20A, please? I think it's Costa RI-A- .

[Lie-in King]

Sorry, I missed that one!

20a Costa Rican (national) - 'co-star' + 'ICA' (gallery) + '(Londo)n' (close)

[boxtops]

looks like Costa Rican then, but I don't know why!

[boxtops]

Thanks, LIK :-)

[mercedita]

Aaaah! Thank you both! I don't know the ICA, not being familiar with London. Thank you. I'll now research ICA & Decatur. :-)

[mikey4444]

Does anyone know why COSTA RICAN is correct for 20a...where is it defined within the clue ?

[dannyk13]

20a.Co star + ica(gallery) + (Londo)n Costa Rican(National)

[sandyRoe]

co star + ican(close, end, of Barbican?)

[sandyRoe]

ignore that^. I was close but don't deserve a cigar

[mikey4444]

I can see that Danny but COSTA RICAN is not defined with the clue.
I thought that in cryptic clues, a definition needs to be present. Perhaps I have that wrong !

[dannyk13]

ICA - Institute of Contemporary Arts

[dannyk13]

National is the definition

[mikey4444]

Ah....now I can see that !...as usual .....many thanks Danny !