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17d, W??, Repartee by missing husband.
19d, Y?r?i??, What might be risky to Plantagenet?.
20a, ???w?l, One spreads cloth across top of recliner.
21d, ??a??, Fish - mention removing head.
23d, D?d??, Thus old man's put up wall sections.
25a, ???d?n??, Detective story with half - hearted gangster element.
26a, ??n?t?, All Shook Up" ,not as a piece of music.

17 Wit (with/by, with the 'h' removed)
19 Yorkist, anagram
20 Trowel - towel+r
23 Dados
25 Whodunit
26 Sonata - anagram of 'not as a'.

Wit(h)

Yorkist (anag)

T(r)owel

(B)Roach

Dados

Whodunnit

Sonata (Anag)

Missed...
21 Roach, fish ('broach', mention - with the head/first letter removed.)

Thank you Malone and mamya, for your help.