Twofold (4)
'twofold' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dual that I've seen before include "Road with central division" , "Consisting of pairs" , "Double" , "Twofold" , "Consisting of two parts" .)
'twofold' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for twin that I've seen before include "One of two duplicates" , "One of two born together" , "This set is matching jumper and cardigan" , "One born with another" , "One from double birth" .)
'twofold' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for double that I've seen before include "Twice - bent over - run" , "Make twice as many" , "Multiply by two" , "Twice, the size say" , "Orwellian acceptance of conflicting principles" .)
'twofold' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for twice that I've seen before include "Two times" , "You only live -- (film)" , "Double in quantity" , "Doubly" .)
'twofold' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for duple that I've seen before include "two ways?" , "(Of rhythm) based on two beats in the bar" , "Double, twofold" .)