Spoilers for Monday 13th September 2021 (Series 84, Preliminary 55)

[Toby McDonald]

EROSIONAL in R5
NATURISM in R7

R6 Alt.: ((100+50)*6)/4-2 = 223

[Philip A]

In Round 12, UPTAKES was mentioned, however UPTAKE does say [MASS NOUN]:

uptake
Pronunciation: /ˈʌpteɪk/
NOUN

[MASS NOUN]
1
The action of taking up or making use of something that is available:
the uptake of free school meals

1.1
The taking in or absorption of a substance by a living organism or bodily organ:
the uptake of glucose into the muscles