Reciprocal (6)
'reciprocal' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for mutual that I've seen before include "Feeling for each towards the other" , "Held in common" , "Joint < commonly" , "Affecting both parties" , "given and received" .)
'reciprocal' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for alternate that I've seen before include "deputy" , "Change from one thing to another by turns" , "Change to first the one, then the other" , "In turns, first one then the other" , "Happen in turns, rotate" .)
(Other definitions for bilateral that I've seen before include "Undertaken by two parties" , "Two-sided" , "Involving two parties" , "involving more than one party?" , "involving two sides" .)