Counter person's resistance, as I for one recalled (6)
I believe the answer is:
geiger
'counter person's' is the definition.
'Geiger' can be an answer for 'person's' (Geiger is an example). I'm not certain of the 'counter' bit.
'resistance as i for one recalled' is the wordplay.
'resistance' becomes 'r' (electronics abbreviation).
'as' becomes 'eg' (I've seen this in other clues).
'for one' becomes 'eg' (both can mean 'for example').
'recalled' says the letters should be written in reverse.
'r'+'eg'+'i'+'eg'='regieg'
'regieg' backwards is 'GEIGER'.
Can you help me to learn more?
(Other definitions for geiger that I've seen before include "This counter measures radioactivity" , "German physicist" , "Counter to measure radiation" , "He developed a radiation counter" , "He invented a device for counting radiation" .)