20 down
Church
director
installs
locks
then
ran
meeting
(7)
Church director installs locks then ran meeting (7)
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The definition is at the end of the clue.
How the clue works
Here, ran meeting is your definition — it means to have presided over proceedings. For the wordplay, CE stands for Church (of England), and you stuff HAIR (meaning locks) inside it to get CHAIRE, then tack on D for director at the end.