Cry of one being grabbed by an ogre (6)
I believe the answer is:
shriek
'cry' is the definition.
(I know that shriek is a type of cry)
'one being grabbed by an ogre' is the wordplay.
'one' becomes 'i' (Roman numeral).
'being grabbed by' means one lot of letters goes inside another (inserted letters are grabbed inside).
'an ogre' becomes 'Shrek' (ogre in the film franchise).
'i' inserted within 'shrek' is 'SHRIEK'.
'of' acts as a link.
(Other definitions for shriek that I've seen before include "Utter high-pitched cry" , "A high-pitched scream" , "A high-pitched shrill cry" , "Shrill cry or scream" , "Shrill cry of a shrike" .)