Tight spot to accommodate large screen (5)
I believe the answer is:
blind
'screen' is the definition.
(I know that blind is a type of screen)
'tight spot to accommodate large' is the wordplay.
'tight spot' becomes 'bind' (I've seen this in another clue).
'to accommodate' is an insertion indicator.
'large' becomes 'L' (eg in clothes sizes).
'bind' placed around 'l' is 'BLIND'.
(Other definitions for blind that I've seen before include "Window screen on a roller" , "Drive very fast" , "Failing to see" , "shade" , "Unobserving" .)