Waiter set out the charge (7)
I believe the answer is:
steward
'waiter' is the definition.
(I've seen this before)
'set out the charge' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'the charge' becomes 'ward' (both can mean a child in one's care).
'set' is an anagram of 'ste'.
'ste'+'ward'='STEWARD'
(Other definitions for steward that I've seen before include "College caterer" , "Crowd supervisor" , "Ship/aircraft attendant" , "One who looks after passengers" , "Ship/aircraft worker" .)