Across:
      
1   --- River Rock
4   These are the eyes that watched as you walked away,   colour them ----
6   ----- tree, very pretty
9   Lead guitarist was Eric Clapton
11   ------ threads ............... cannot mend this heart of mine
13   Charlie -----, he's a clown
14   God didn’t make little ----- apples
15   She wore ---- velvet
16   Cilla -----

Down:
                         
1   Goodbye ---- Tuesday
2   ------ People Eater
3   A white sportscoat and a ---- carnation
5   Itsy witsy teeny weeny ------ polka dot bikini
7   ------- ribbons for her hair
8   -----r shade of pale
10   ----- Cascades by America
12   ------s are blue, sugar is sweet my love
14   ----en needles cannot mend this heart of mine


Easy huh!  Now name the artists and spot the theme.  Tougher next time when we return with the answers.