1. It's not clear where they are used (3,7)
-O- S---A-- (the last letter is possibly a K)
2. Took the part of another (--D-D)
3. Fine yarn that is authentic (4,4) R-A- --L-
4. Entrances groups of spectators (5) --P-S
5. Beat the unbeatable (4) B-S-
Thanks Joker...I do have a letter wrong, and fog signals is perfect.
But...(There's always a but!)...if I use aided or sided the 1st letter of the 2nd word for No3 would have to be A or S. So REAL TALE won't do.
Thanks from Poppy