Provide only a garbled version (3,2)
I believe the answer is:
lay on
'provide' is the definition.
(I've seen this before)
'only a garbled version' is the wordplay.
'garbled version' indicates anagramming the letters (I've seen this in other clues).
'only'+'a'='onlya'
'onlya' is an anagram of 'LAY ON'.
(Other definitions for lay on that I've seen before include "Provide (something)" , "Provide (food, etc)" , "instruction for Macduff" .)