Petty misdeed at home — consider it silly (12)

I believe the answer is:

indiscretion

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'petty misdeed' is the definition.
'indiscretion' can be an answer for 'misdeed' (indiscretion is a kind of misdeed). I'm unsure of the 'petty' bit.

'home consider it silly' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'silly' indicates anagramming the letters.
'consider'+'it'='considerit'
'considerit' anagrammed gives 'discretion'.
'in'+'discretion'='INDISCRETION'

'at' is the link.

Can you help me to learn more?

(Other definitions for indiscretion that I've seen before include "Tactless remark or action" , "Rashness" , "Imprudence" , "Careless remark" , "Slip" .)

I've seen this clue in The Times.

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