Question Author
many thanks kettledrum,
and yes there are certain starred* questions (14 across being one of them) the complicated instructions read :
"Answers to starred clues are words which are too short to be grid entries. In each case,the entry is created by the attachment or insertion of another part. These parts of one,two or three letters will spell out in clue order a two word term for the process by which the resulting entries are formed. The term was coined by 8down who was born two hundred years ago in february."
I have Charles Darwin for 8d but so far have not worked out the two word process !