Dm Fri

[marg14a]

5a Fruit and tonic cocktail with rare ingredient ????O? (6) and12a A boy's excited following girl across mountain and sea B?Y ?? ???G?? (3&2&6) and 24a Rugby in Dublin unwisely left out African country T???N?? (7) - thanks

[cupid04]

5a] citron
12a] Bay of Bengal
24a] Burundi

[bibblebub]

5a CITRON = anagram of 'tonic, with r[=rare] inside

12a BAY OF BENGAL
a boy's excited = BAY O, following = F, girl = GAL, across mountain = put BEN in the middle

24a BURUNDI
rugby = R.U. [rugby union], and put that in the middle of...
dublin unwisely left out = anagram of dub(l)in = BUNDI
BUruNDI

[marg14a]

thanks cupid04 and bibblebub