Lovatts colossus 120, Giant Cryptic pg 10

Hi, need some help with these answers:

32a Tasty morsel provided with thoughtful sensitivity (8) r???c???
44a Binding documents for shrinks (9) c???e?i??
46a Witness part of the mob serve ringleader (8) e???r???
51a Check material required in packaging hamburgers (7) ?????a?
60a Greig, for example leaves First Lady to mourn (6) g?i???
62a Where an angler hopes to find fish - connected to the net (6) ?n?i?e
68a Lean to a bit of everything (4) t?i?
29d Send invoice to executive committee for roadside hoarding (9) ?i??b????
31d Concentration needed to produce report in tense city (9) ???e?????