One's first scampi -- one 'erbert grabbing the middle bit (7)
I believe the answer is:
pioneer
'one's first' is the definition.
'pioneer' can be an answer for 'first' (thesaurus). I'm unsure of the 'one's' bit.
'scampi one 'erbert grabbing the middle bit' is the wordplay.
'PIONEER' is hidden in amongst the letters.
But, I am uncertain how this is indicated.
Can you help me to learn more?
(Other definitions for pioneer that I've seen before include "person arriving early" , "original leader" , "take the lead" , "true original" , "Original developer" .)