Observation about suitable victim (6)

I believe the answer is:

remark

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'observation' is the definition.
(I know that remark is a type of observation)

'about suitable victim' is the wordplay.
'about' becomes 're' (regarding).
'suitable victim' becomes 'mark' (mark is a kind of victim. I am not sure about the 'suitable' bit.).
're'+'mark'='REMARK'

Can you help me to learn more?

(Other definitions for remark that I've seen before include "Comment or mention" , "Comment, observation" , "Make mention of" , "what someone says?" , "(E.g. Virgil's) pastoral poems" .)

I've seen this clue in The Times.

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