New B-Ginnings 
Confuse with booze   BESOT [liked the rhyme]
Knight wear   ARMOR 
Read letters?   SPELT
Head of the ranch?   HERD
Theme: first word of a phrase is respelled but sounds the same while now beginning with 
bResult of a cock’s crow?   BROODAWAKENING [rude awakening]   
Shindig for Swahili VIP’s?   BWANADANCE [“wanna dance?”]
Bedbugs on the Orient Express?   BERTHWORMS [earth worms] 
Bar, in 13-Down {LAW}   EXAM [the test called “the bar,” is shortened from “bar exam” --- bar is not the exam]
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