Clue: Might they risk slaloming round the top of Everest on Sunday? (6)
Answer: SKIERS
Explanation: Might they risk slaloming round the top of Everest on Sunday? (6)
A charade of SKIER, an envelope ('round') of E ('top of **E**verest') in SKIR, an anagram ('slaloming') of 'risk' plus S ('Sunday'), with a rather improbable extended definition.