Cheer having the Spanish worried (5)
I believe the answer is:
elate
'cheer' is the definition.
(to elate is to cheer or make happy)
'the spanish worried' is the wordplay.
'the spanish' becomes 'el' ('the' in Spanish).
'worried' becomes 'ate' (something worrying may eat someone up).
'el'+'ate'='ELATE'
'having' acts as a link.
(Other definitions for elate that I've seen before include "transport?" , "Fill with joy" , "Exhilarate, put in high spirits" , "Fill with high spirits" , "Fill with optimism" .)