Sunday Telegraph Cryptic 2825 Sunday December 6Th 2015

[jellybun]

I have two I can't get and two need conformation, any help appreciated.
27ac Point on south coast enemy finally secured in invaders, initial objective.
6 & 4L -E - - - - / - E - D.
21dn Material from a cart spread over motorway. 6L - - - M - -.
And confirmation of 11dn Is it Alternatively? And 22ac is it Consolidation?

[fiction-factory]

beachy head?

[Sam1960]

27. beechy head ?

[fiction-factory]

I was expecting it to end in END though so maybe not

[Sam1960]

^
beachy (typo)

[DocHH]

Beach Head surrounding Y = Beachy Head!

[DocHH]

TARMAC, anagram A CART M

[scorpiojo]

What are the clues for 11 & 22 please?

[jellybun]

Sorry scorpiojo I forgot to put them in.
22ac Increasing in strength I had, surrounded by comfort.
13L C - N - O - I - A - - - N.
11dn As another option, reform in artless fashion over time
13L A - T - R - A - - - E - Y.

[Sam1960]

consolidation

[Mamyalynne]

Alternatively

[DocHH]

CONSOLATION is ease, so that surrounded by ID (I had) = CONSOLIDATION. Reform = ALTER, artless fashion = NAIVELY, T + time, so ALTER NA T IVELY

[jellybun]

Thank you all very much for your help and answers.