All the answers are associated with holidays at the seaside.
3 Hard ball game?
5 Dance step
8 Former radio programme
19 More effortlessly / protect
20 Although confused, teams can win
Could 5 be "rock"?
I don't know how many letters or words in the answers. The rest have been straight forward eg: "he sang about a summer holiday" = CLIFF Richard but I am really stuck on these. Can anyone help me out there please?