7a Party William’s cutting (4) S _ CT
(I presume it is SECT but I cannot parse it)
29 Organic compound got from major artery in fish (5) IM _ DE
(it has to be IMIDE which is the organic compound, but unless there is a fish artery called a "gotimide", I cannot parse this either.
25 Local gutter to divert left (5) _ WAYL
I am hoping that SWAYL is an alternative spelling of SWALE then it parses OK
Alternatively I can parse AWAYL, provided that also is a swale or local gutter!
Unfortunately I can find no reference to either swayl or awayl!