There are multiple acts charting as Clover:
These are photos from concerts where Clover played, so they may be of other bands that played the concert as well.
Thin Lizzy / Clover Oct 26, 1976 Birmingham, England, United Kingdom Uploaded by Zimtrim
Thin Lizzy / Clover Oct 21, 1976 Cardiff, Wales, United Kingdom Uploaded by Mark Stacey