Pat designed fresh method of matchmaking (5,6)
I believe the answer is:
speed dating
'matchmaking' is the definition.
(I know that Speed dating is a type of matchmaking)
'pat designed fresh' is the wordplay.
'fresh' indicates anagramming the letters (a fresh re-ordering of the letters).
'pat'+'designed'='patdesigned'
'patdesigned' anagrammed gives 'SPEED DATING'.
'method of' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for speed dating that I've seen before include "Quick way to meet a new partner?" , "Event where people can quickly size up potential partners" , "Series of person-to-person meetings" , "Quick modern way to find a partner?" , "Series of brief meetings" .)