Seasoning Stu  
Labor party?   MOM
“High Voltage” rockers   ACDC [they are that]
Eagle’s tail?   EYED
Computer support?   DESK [not sure why there’s a question mark]
Theme: puns with herbs
Means of turning an herb into energy?   BASILMETABOLISM 
John’s running mate   SARAH [This second reference to her can only be malevolence of the most sadistic intent.]
Tijuana toddlers   NENES [Using a Spanish clue, especially when other English words are available, can only be malevolence designed to drive me crazy.  Gareth is becoming a bane!]
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