Broadened one's horizons producing record cover for Ray & Teddy (8)
I believe the answer is:
expanded
'broadened' is the definition.
(thesaurus)
'one's horizons producing record cover for ray teddy' is the wordplay.
I cannot quite see how this works, but
'teddy' could be 'ed' (I've seen this in other clues) and 'ed' is found in the answer.
'one' could be 'an' (I've seen this in other clues) and 'an' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for expanded that I've seen before include "Sort of polystyrene" , "Grew larger" , "Grew in extent" , "Amplified, spread out" , "Widened" .)