General rule in doorstep receptions (7)

I believe the answer is:

precept

'general rule' is the definition.
(I've seen this before)

'in doorstep receptions' is the wordplay.
'in' indicates a hidden word.
'PRECEPT' is hidden within 'doorstep receptions'.

(Other definitions for precept that I've seen before include "Canon" , "Moral rule" , "General rule for behaviour" , "Rubric" , "Rule of action" .)

I've seen this clue in The Times.

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