For every bit of experience (3)
I believe the answer is:
per
'for every' is the definition.
('per' means 'for each' or 'for every')
'bit of experience' is the wordplay.
'bit of' indicates a hidden word.
'PER' can be found hidden inside 'experience'.
(Other definitions for per that I've seen before include "Preposition indicating by means of" , "According to" , "Preposition meaning for each" , "For each or every" .)