Crossword Help Forum
Forum Rules

Sorry - the extra L in ULLSWATER is from 'Lake'.

18a: yes, close encounter
seen- observed
counter- disc
clo (t) - fool with no t (ime)

7d: ginger nut - biscuit (def
get - see about
+ anagram of "run" gin - drink

16d:
Ullswater- lake (def)
u -united
later- in due course
l- large
sw- south western

20a: lawful= allowed (def)
l - player's second letter
awful- foul

Re ULLSWARTER - Apologies, Jazzgirl's is the correct parsing.

Thank you jazzgirl, rusty, Brendan and Elle! I hope I haven’t missed anyone. It all makes sense now.