Allotted leading actor from first Shrek and The Omen with English director (8)
I believe the answer is:
assigned
'allotted leading actor' is the definition.
'assigned' can be an answer for 'allotted' (assigning is a kind of alloting). I am not sure about the 'leading actor' bit.
'from first shrek and the omen with english director' is the wordplay.
'from' is an anagram indicator (from the letters).
'first' indicates taking the first letters.
'the omen' becomes 'sign' (I've seen this before).
'with' is a charade indicator (letters next to each other).
'english director' becomes 'ed' (this might be a standard abbreviation I've not previously seen).
The initial letters of 'shrek and' is 'sa'.
'sa' is an anagram of 'as'.
'as'+'sign'+'ed'='ASSIGNED'
Can you help me to learn more?
(Other definitions for assigned that I've seen before include "'Allotted, ascribed (8)'" , "Allotted or appointed to a post" , "Told" , "Gave a task to someone" , "Allocated" .)