Force the Spanish to follow little devil (5)
I believe the answer is:
impel
'force' is the definition.
(I know that force can be written as impel)
'the spanish to follow little devil' is the wordplay.
'the spanish' becomes 'el' ('the' in Spanish).
'to follow' is a charade indicator (letters next to each other) (some letters go after or follow others).
'little devil' becomes 'imp' (an imp is a little demon).
'el' put after 'imp' is 'IMPEL'.
(Other definitions for impel that I've seen before include "Motivate" , "Oblige" , "Spur on" , "Cause to move forward" , "Drive or coerce" .)