Is beguiling and demure when hugged by boy (6)
I believe the answer is:
decoys
'is beguiling' is the definition.
'demure when hugged by boy' is the wordplay.
'demure' becomes 'coy' ('coy' can be a synonym of 'demure').
'when hugged by' indicates putting letters inside.
'boy' becomes 'des'.
'coy' inserted inside 'des' is 'DECOYS'.
'and' is the link.
(Other definitions for decoys that I've seen before include "They're used to lure people into traps" , "Allures" , "Alluring things" , "Lures" .)