Set price for uranium in valley (5)
I believe the answer is:
value
'set price' is the definition.
'value' can be an answer for 'price' (thesaurus). I'm not certain of the 'set' bit.
'uranium in valley' is the wordplay.
'uranium' becomes 'U' (U is the chemical symbol for uranium).
'in' means one lot of letters goes inside another.
'valley' becomes 'vale' (synonyms).
'u' put inside 'vale' is 'VALUE'.
'for' is the link.
Can you help me to learn more?
(Other definitions for value that I've seen before include "Precise meaning" , "Worth; prize" , "Treasure" , "Consider to be important" , "Importance, worth or usefulness" .)