Call in the Spanish to make decorative material (6)
I believe the answer is:
enamel
'decorative material' is the definition.
'enamel' can be an answer for 'material' (I have seen 'Hard material ' mean 'enamel' so perhaps 'material' could also mean 'enamel'). I am unsure of the 'decorative' bit.
'call in the spanish' is the wordplay.
'call' becomes 'name' (as in calling or naming someone something).
'in' means one lot of letters goes inside another.
'the spanish' becomes 'el' ('the' in Spanish).
'name' put within 'el' is 'ENAMEL'.
'to make' acts as a link.
Can you help me to learn more?
(Other definitions for enamel that I've seen before include "Ale men (anag.)" , "sort of paint" , "Hard glossy surface" , "Outer tooth material" , "Hard glossy paint" .)