Force to support the Spanish (6)
I believe the answer is:
propel
'force' is the definition.
(thesaurus)
'support the spanish' is the wordplay.
'support' becomes 'prop' (prop up can mean to support).
'the spanish' becomes 'el' ('the' in Spanish).
'prop'+'el'='PROPEL'
'to' acts as a link.
(Other definitions for propel that I've seen before include "Drive or push forward as with oars" , "Launch" , "Drive forwards" , "Cause to move forward with force" , "Derive of push forward" .)