i Cryptic Crossword No 331

[souxie]

7 Across, Dwelling needing adjustment when centre's taken out(10)
13 Across, Extremely tough,bitter and twisted?(4-6)
20 Across, Garment owned,possibly by her mother initially(4-2-4)

Sorry about the lack of letters

Many Thanks in Advance

[bibblebub]

20a) HAND-ME-DOWN

owned possibly [i.e. anagram] = E DOWN
Her Mother initially = H AND M

[bibblebub]

13a) HARD-BITTEN

anagram of H+BITTER+AND - the H is the last, i.e. extreme, letter of 'tough'

[bibblebub]

7a) HABITATION [=dwelling]

adjustment when centre's taken = HABIT(u)ATION