Times Jumbo Cryptic No 1206

[dofray]

Help required to complete this crossword, I am left with bottom left, any help would be appreciated. Thanks in advance.
33d Complete removal of accents originally in period speech (11) I have
E?A???A???? Is this evaporation? And if so why, I get the oration bit but not the EVAP bit.
43d Former partner comes up to select a weapon (7) ??C????
35d Hard penetrating fine market area for specialists (5) N?O?E
54a Mountain involved in flipping giant explosion (4) ????
Over to all you clever crossword solvers.

[mac44]

33d. eradication

[mac44]

43d. pickaxe

[sandyRoe]

43 pickaxe?

[scorpiojo]

Era dic (t)ation
Pick a xE
Nic H e
Etna reversed in clue

[mac44]

35d. niche

[shoota]

35d Niche ?

[scorpiojo]

Staphylococcus

[sandyRoe]

54. Etna. In clue

[dofray]

Thank you everyone, I had spelled staphylococcus wrong therefore couldn't get niche and as for rest didn't have a clue. Thank you everyone for all your help. I am in all your debts.

[scorpiojo]

You're welcome