British doctor has struggle making low-budget film (1-5)

'low-budget film' is the definition.
(I've seen this before)

'british doctor has struggle' is the subsidiary indication.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'doctor' becomes 'mo' (**).
'has' is a charade indicator (letters next to each other).
'struggle' becomes 'vie' (I've seen this in other clues).
'b'+'mo'+'vie'='bmovie'

'making' is the link.