a great one for
a great one for (doing something)
Prone or apt to do something (typically because one likes it). Often used in the negative. I hate talking on the phone, so I'm not a great one for returning phone calls.
a great one fora habitual doer of; an enthusiast for.
1994 Romesh Gunesekera Reef Early on I learned the value of making lists from watching Mister Salgado. He was a great one for lists.