Inviting cross intercepted by right back (4)
I believe the answer is:
sexy
'inviting' is the definition.
(thesaurus)
'cross intercepted by right back' is the wordplay.
'cross' becomes 'x' (X is cross-shaped).
'intercepted by' is an insertion indicator (inserted letters are captured or intercepted).
'right' becomes 'yes' (right can mean yes or okay).
'back' shows that the letters should be reversed in order.
'x' going into 'yes' is 'yxes'.
'yxes' in reverse letter order is 'SEXY'.
(Other definitions for sexy that I've seen before include "arousing passion" , "Very appealing" , "Voluptuous" , "Erotic" , "Attractive (sl.)" .)