Play about a redhead in Helen's place (4)
I believe the answer is:
troy
'helen's place' is the definition.
I can't judge whether this defines the answer.
'play about a redhead' is the wordplay.
'play' becomes 'toy' (synonyms).
'about' indicates putting letters inside.
'a redhead' becomes 'r' (the head/first letter of 'red').
'toy' enclosing 'r' is 'TROY'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for troy that I've seen before include "The pound - had twelve ounces, ancient city" , "System of weights used for precious metals" , "City besieged by Greeks to rescue Helen" , "Iliad siege city" , "Ancient city besieged to free beautiful Helen" .)