27a. rock and gravel ridge deposited at the end of ice age 5 letters e - k - -
29a. ubiquitous folk ballad covered by all and sundry ( 5. 6 ) letters - - - - - (- - r - o - )
23d. syllabus, track and direction 6 letters - o - - - -
21d. oft I gag after cooking wild fruit 4.3 letters words g - a - (f - - )
20d. presently, soon 7 letters e - e - o - t
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