THEME:   phrases containing the chemical symbol AU   
GOOD ONES:     Kind nature {& theme}   HEART OF GOLD   
Stock quote?   MOO [cattle = stock]   
Where to find a horse with no legs?   SEA [as in seahorse --- glue factory didn't fit (sorry)]   
Promise from a shy person?   IOU [shy in the sense of owing money]   
Modern art?   ARE ["Wherefore art thou Romeo?"]   
Like no news?   GOOD ["no news is good news": certainly true on TV]   
Bean sprout?   IDEA [bean = head]      
BTW:   Life altering words   I DO [come to think of it, there are zillion words and phrases that fit that definition, from "YES" and "NO" to "I'LL TRY IT" to "LET'S GO SWIMMING"]      
Spanish 101 verb   
ESTA [and 
engripador is a noun --- so what?]      
Of all the ways to clue TIS, why quote John Donne I wonder.  Raise your hand the last time you read anything by John Donne --- or even seen his name in print.  If you're a fan of Old English kenning, you may enjoy "Lucy."         
RATING:    
 
  
 
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun