Got pier rebuilt for undertaking to boost self-appraisal (3,4)

I believe the answer is:

ego trip

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'undertaking to boost self-appraisal' is the definition.
I can't tell whether this definition defines the answer.

'got pier rebuilt' is the wordplay.
'rebuilt' indicates an anagram.
'got'+'pier'='gotpier'
'gotpier' is an anagram of 'EGO-TRIP'.

'for' is the link.

Can you help me to learn more?

(Other definitions for ego trip that I've seen before include "Experience enjoyed by the conceited" , "morale-boosting experience" , "Self-aggrandising conduct" , "Self-glorification episode" , "Act of self-glorification" .)

I've seen this clue in the Sydney Morning Herald.

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