Delegate allowed expenses, initially charged (7)

I believe the answer is:

replete

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'charged' is the definition.
(I've seen this before)

'delegate allowed expenses initially' is the wordplay.
'delegate' becomes 'rep' (I can't explain this - if you can you should give a lot more credence to this answer).
'allowed' becomes 'let' (I've seen this before).
'initially' indicates taking the first letters.
The initial letter of 'expenses' is 'e'.
'rep'+'let'+'e'='REPLETE'

Can you help me to learn more?

(Other definitions for replete that I've seen before include "Full, sated" , "Filled, well supplied" , "Filled to satisfaction" , "Stuffed, gorged, sated" , "Fully satisfied" .)

I've seen this clue in The Telegraph.

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