Affectedness after you call (9)

I believe the answer is:

posturing

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'affectedness' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Maybe there's an association between them I don't understand?

'after you call' is the wordplay.
'after' becomes 'post' (prefix meaning after, eg post-war).
'you' becomes 'u' (commonly used in online communication).
'call' becomes 'ring' (telephone call).
'post'+'u'+'ring'='POSTURING'

Can you help me to learn more?

(Another definition for posturing that I've seen is " showing off".)

I've seen this clue in The Daily Express.

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