Beat of peas, for example (5)
I believe the answer is:
pulse
'beat' is the definition.
(I know that pulse is a type of beat)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pulse that I've seen before include "edible seeds of leguminous plants!" , "Edible seed from various pod plants" , "beats reading!" , "Bustle" , "Seed of bean or pea plant" .)