Creativity of work on limits of theology (7)
I believe the answer is:
novelty
'creativity' is the definition.
(novelty is a kind of creativity)
'work on limits of theology' is the wordplay.
'work' becomes 'novel' (type of literary work).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'limits of' says to hollow out the word (remove centre letters).
'theology' with its centre removed is 'ty'.
'novel'+'ty'='NOVELTY'
'of' is the link.
(Other definitions for novelty that I've seen before include "Small, inexpensive, unusual article" , "Original item" , "Small, cheap ornament" , "Something new and strange" , "Innovation" .)