Crossword Help Forum
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1.Lift up (spirits) 4 letters - I think may be "rays" any other ideas?
2. watch out! Or Beware 4 - perhaps duck but any other thoughts?
3. Sinus, Standing & Shock 5 letters
4.keep or feel 7 letters

No.2 CAVE ?

3 wave

4. Harbour?

3 waves

Thanks -the wave one had been driving me nuts- had not thought of the "sine" wave for sinus.