Showing workglog to reguester or time spent to reguester

Showing workglog to reguester or time spent to reguester

In reguest there is section Time Elapsed where you can enter worklog fot ticket.
I have got questions that would that be possible to show this worklog to reguester?
Our need would be that reguester would see how long time it has taked to solve this problem?
Is there anykind solution for this or workground?
We would only one time fill worklog... it that possible example transfer Time Elapsed total to solution Resolution pages etc..
This would be very importat to solve.
 
Second question is that possible to hide cost for worklog?

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