Splendid and attractive without catch (5)
I believe the answer is:
magic
'splendid' is the definition.
(thesaurus)
'attractive without catch' is the wordplay.
'attractive' becomes 'magnetic' (synonyms).
'without' suggests deleting specific letters.
'catch' becomes 'net' (netting is a kind of catching).
'magnetic' with 'net' taken out is 'MAGIC'.
'and' is the link.
(Other definitions for magic that I've seen before include "Conjuring trick, legerdemain" , "Marvellous" , "Enchanting quality" , "Illusory feat" , "Sorcery - conjuring" .)