Colleague following blundering Tory leader Sunak mostly an easy target (9)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

ALLY (colleague), following an anagram (blundering) of the leading letter of T [ory] + SUNA [k] (mostly = all but the last letter). A target in a fairground game, or (metaphorically) a person, object or opinion set up as a target for criticism.