Sunday post easy and cryptic

[annie49]

Hi stuck on a few Any help greatly appreciated
5d Deflate and outwit second doctor holding last letter (3 4 2 4) ??? down to
?i??
10a A few on rickety tower get vertigo ultimately (3 2 3)??? ?? t??
5a Mediterranean Island tree,we hear (6) ????u?
TIa

[Twit-Who]

one or two

[Twit-Who]

cyprus

[Mamyalynne]

5 cyprus

[Lie-in King]

5d Cut down to size (deflate) - anag (doctor) 'outwit second + z'
10a One or two - 'on' + anag 'tower' + (vertig)o
5a Cyprus - "Cypress" (tree, heard)

[annie49]

Thanks folks .
I have come across another one
21a Lost friend beginning to become boring (4) ??l?
Once again TIA

[sandyRoe]

Pall

[shooty]

pal + l

[shooty]

pall 2 (pɔːl)

— vb (often foll by on )
1. to become or appear boring, insipid, or tiresome

[annie49]

Thanks again