Saturday Double Cross 
Drawing room?   GALLERY
American leader?   ALL
It can help you carry a tune   TRANSISTERRADIO [see FINK below]
Dizzy music?   BOP 
Red head   LENIN [note two words]
Retail store opening?   WAL 
Rat   FINK [wasn’t this slang used only for a moment a half century ago (transister radios were around when "GTO" was a hit, even before 
rat finks.] 
Tableau Periodique #26   FER [I’d go with “Not agin’” or “Bears, Comb. Form” or “___-de-lance: snake”]
RATING:   
 
 Three grins = Excellent: Loved it; Two grins = Good: Enjoyed it; One grin = Satisfactory: A bit bland for my taste; One teardrop = Unsatisfying: No fun