Dull film with cute alien in coppice (7)
I believe the answer is:
thicket
'cute alien in coppice' is the definition.
'thicket' can be an answer for 'coppice' (synonyms). I am not sure about the 'cute alien in' bit.
'dull film' is the wordplay.
'dull' becomes 'thick' (I am not sure about this - if you are sure you should believe this answer much more).
'film' becomes 'ET' (E.T. the Extra-Terrestrial).
'thick'+'et'='THICKET'
'with' is the link.
Can you help me to learn more?
(Other definitions for thicket that I've seen before include "Mass of shrubs and small trees growing close together" , "Wood" , "Mass of shrubs and bushes growing close together" , "Coppice" , "Dense shrubbery" .)