1a - Care to spin bull in party about unity? You need this(6,9)
20a - Conservative involved in certain sweetener abroad (5) S?C?E
27a - Rod associated with deception (5,4)
29a - Tree in shivering part of east London? (9,6)
8d - Neat and elegant secret agent set about card game (6)
21d - Looking up cat, sheep and rodent (6)