Love games after Pamplona's leader is one releasing bulls (4)
I believe the answer is:
pope
'one releasing bulls' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'love games after pamplona's leader' is the wordplay.
'love' becomes 'o' (love means zero in tennis).
'games' becomes 'pe' (abbreviation for Physical Education).
'after' means one lot of letters go next to another.
'leader' says to take the initial letters.
The initial letter of 'pamplona' is 'p'.
'o'+'pe'='ope'
'ope' after 'p' is 'POPE'.
'is' is the link.
Can you help me to learn more?
(Other definitions for pope that I've seen before include "Poet - religious leader" , "Well-versed man" , "Top bishop" , "freshwater fish" , "church leader in Rome" .)