Saga Cryptic

[Polly37]

11 down Day becoming cold in mountains,attempt descent (8)
.??c?S??? 7across Guide giving specific directions (13) ???????????i?
12 across Longlegged flapper, a good weight lifter (5) ???N?

[JJ109]

12a Crane

[sedge47]

11d ancestry - Andes with D changed to C + try (attempt)

[Flonska]

12a Crane (double def)

[Flonska]

For No 2 can you confirm the letter placing?

[Polly37]

7across is ???????????i? Eleven ? Then an I and another ?. Sorry I cannot give any mor help to it.

[Polly37]

Thank you for answering 11 down and 12 across. I will have to work on the other one .

[cashier]

Does encyclopaedia work?

[Mamyalynne]

7 Pharmacopoeia

Specific is a name for a medicine

[Polly37]

Thank you for your help.

[Flonska]

My view is that Pharmacopoeia is the best answer - inspired thinking for that one - well done!

[Mamyalynne]

That's kind, I don't know the crossers sadly.

[Polly37]

Thank you put that in in pencil.