Islander heading for cinema rushed to catch film (6)
I believe the answer is:
cretan
'islander' is the definition.
(someone from Crete)
'heading for cinema rushed to catch film' is the wordplay.
'heading for' indicates taking the first letters.
'rushed' becomes 'ran'.
'to catch' is an insertion indicator.
'film' becomes 'ET' (E.T. the Extra-Terrestrial).
The first letter of 'cinema' is 'c'.
'ran' placed around 'et' is 'retan'.
'c'+'retan'='CRETAN'
(Other definitions for cretan that I've seen before include "One comes from a Mediterranean island" , "Island nationality of citizen of Heraklion" , "One from Greece's largest island" , "Native of Greek island south of mainland (6)" , "Greek islander" .)