Convert (5)
'convert' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for transform that I've seen before include "Change markedly" , "adapt" , "Subject to change" , "Make great change in appearance of" , "Change completely" .)
'convert' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for adapt that I've seen before include "Convert to another use or situation" , "Adjust to new circumstances" , "Put to particular use" , "Make or become suitable" , "Change to fit new circumstances" .)
'convert' is the definition.
(reforming is a kind of converting)
This is the entire clue.
(Other definitions for reform that I've seen before include "Correct(ion of) abuses" , "Mend one's ways" , "Removal of abuses" , "Show improvement" , "Go straight" .)