Deep love almost changed process (7)
I believe the answer is:
develop
'process' is the definition.
(thesaurus)
'deep love almost changed' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'changed' indicates anagramming the letters.
'deep'+'love'='deeplove'
'deeplove' with its final letter taken away is 'deeplov'.
'deeplov' with letters rearranged gives 'DEVELOP'.
(Other definitions for develop that I've seen before include "Result" , "Work out in more detail" , "Convert (land) to new purpose" , "Become larger or more mature" , "Grow, progress" .)