Hi, welcome folks, here you find the answers for the 421 level of Words of Wonders Guru, Have fun :D
... Lennox, Scottish singer who formed Eurythmics with Dave Stewart
Support for an injured arm
Lie on surface of water
Slowpoke
Stage
Imperfection
... Frank, young Dutch girl who kept a journal during Holocaust
Suddenly expanding star
One plus one
Catchy advertising tune