Chart showing pub and hotel stocking mostly pinot, perhaps (3,5)
I believe the answer is:
bar graph
'chart' is the definition.
(bar graph is a kind of chart)
'pub and hotel stocking mostly pinot perhaps' is the wordplay.
I cannot quite see how this works, but
'pub' could be 'bar' (both are drinking establishments) and 'bar' is located in the answer.
'hotel' could be 'h' (phonetic alphabet: alpha, bravo, charlie etc.) and 'h' is located in the answer.
This explanation may well be incorrect...
'showing' is the link.
Can you help me to learn more?
(Other definitions for bar graph that I've seen before include "Grab harp (anag.)" , "Diagrammatic representation of comparative amounts" , "Chart with blocks, their lengths proportional to quantities" , "Lines of varied lengths" .)