Various memories not accommodating new episode of forgetfulness (6,6)

I believe the answer is:

senior moment

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'forgetfulness' is the definition.
(I know that senior moment is a type of forgetfulness)

'various memories not accommodating new' is the wordplay.
'various' indicates anagramming the letters.
'accommodating' means one lot of letters goes inside another.
'new' becomes 'n' (abbreviation as in New Testament NT).
'memories'+'not'='memoriesnot'
'memoriesnot' anagrammed gives 'seniormomet'.
'seniormomet' placed around 'n' is 'SENIOR MOMENT'.

'episode of' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for senior moment that I've seen before include "memory lapse" , "Fleeting loss of memory" .)

I've seen this clue in The Times.

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