Notice worries pygmies somewhat (4)
I believe the answer is:
espy
'notice' is the definition.
(I've seen this before)
'worries pygmies somewhat' is the wordplay.
'somewhat' says the answer is hidden in the clue.
'ESPY' can be found hidden inside 'worries pygmies'.
(Other definitions for espy that I've seen before include "Perceive" , "Observe (arch.)" , "Observe, notice" , "Catch a glimpse of" , "Spot; observe" .)