Bob —, actor who starred as Ronald Craven in 1985 BBC TV drama series Edge of Darkness (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
peck
(Other definitions for peck that I've seen before include "Country; letter I (radio communications)" , "Nibble" , "Bite lightly; a dry measure" , "Large number" , "Eat just a bit" .)