24a chop up hard wood (4) h???
23d skill a student invested in shelter with guys (6) ?a???t
20d government request mothers to come in riot gear (3,4)
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1a Mark, at church, is seldom seen (6) ??a???
18a where to put umbrella is too complicated (4.4,4)
9d involve getting directions to follow (6)
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21d cheerful conductor starts with it (6) u???a?
24a drink this in Britain with Yankee (6) ??a?d? is it - shandy?
17a enthralled house gave approval (6) ?o???d
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24a very dry and still, with river running through (4) b???
19a excellent clue to source of puzzle (6) t???o?
20d it clears pipes for diver (7)
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