st cryptic 2461

[fireflybob]

Two more to go!

22a Food provided, when back, by mum (4)

F?S?

27a Over a drink, is shown to have a heart (5)

?G?I? (Maybe AGRIN ?)

Thanks for any help

[Lie-in King]

22a Masa - (Mexican dough) - Ma (mum) + as (when, back) (?)

[managra]

22a fish
27a again

[fireflybob]

22a FISH agrees with the other clues but can anyone explain how this clue is FISH?!

Once again many thanks for all your help!

[The Builder]

if backwards....is FI.....................mum is sh as in keep mum

[Lie-in King]

Ok, sorry! I see it now -

Fish - if (when, back) + sh = (keep) mum!; be quiet

[managra]

When, ie if, back = FI. Mum, as in keep quiet =SH