Leader of people entertained by splendid meal (6)
I believe the answer is:
supper
'meal' is the definition.
(I know that Supper is a type of meal)
'leader of people entertained by splendid' is the wordplay.
'leader of' indicates taking the first letters.
'entertained by' is an insertion indicator (inserted letters are hosted or entertained).
'splendid' becomes 'super' (I've seen this in another clue).
The initial letter of 'people' is 'p'.
'p' going into 'super' is 'SUPPER'.
(Other definitions for supper that I've seen before include "Early evening meal" , "Evening 2 Down" , "Evening repast" , "Late repast" , "Light, late, meal" .)