Some err badly and show regret (7)

I believe the answer is:

remorse

I'm a little stuck... Click here to teach me more about this clue!

'show regret' is the definition.
'remorse' can be an answer for 'regret' (remorse is a feeling of regret). I'm unsure of the 'show' bit.

'some err badly' is the wordplay.
'badly' indicates an anagram.
'some'+'err'='someerr'
'someerr' anagrammed gives 'REMORSE'.

'and' is the link.

Can you help me to learn more?

(Other definitions for remorse that I've seen before include "Ruefulness" , "compassion" , "Regret for wrong" , "display of conscience" , "Self-reproach" .)

I've seen this clue in The Globe and Mail.

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