Times Club Monthly

[mra1]

I have completed it but am puzzled as to the parsing of what I think is the solution to 27 across. I work it out as ectosarcs but the clue says "shocking way to treat curvature in bone cell parts." The defininition of ectosarcs does not relate to this clue but I cannot find anything else which will complete what I have viz E?T?S?R?S. Can anyone explain the parsing or give me a different answer?

[djawhufc]

ect shock treatment

arc- curvature

oss- bone

[greyfox]

Ect (Electro-convulsive therapy - 'shocking way to treat') + arc ('curvature') in os's ('bones').

[mra1]

Thank you very much - now all is clear! I do like to know how a solution is reached!