Eager in rough after putting a five to make par (7)
I believe the answer is:
average
'par' is the definition.
(I've seen this before)
'eager in rough after putting a five' is the wordplay.
'in rough' is an anagram indicator.
'after putting' says to put letters next to each other.
'five' becomes 'v' ('V' can be a synonym of 'five').
'eager' anagrammed gives 'erage'.
'a'+'v'='av'
'erage' after 'av' is 'AVERAGE'.
'to make' is the link.
(Other definitions for average that I've seen before include "Mediocre - medium" , "Mean - everyday" , "nothing special" , "Normal amount" , "building society customer loses capital over time" .)