Take a quick look at heart surgeon then make the incision (6)
I believe the answer is:
glance
'take a quick look' is the definition.
(I've seen this before)
'heart surgeon then make the incision' is the wordplay.
'heart' indicates the central letters.
'then' means one lot of letters go next to another.
'make the incision' becomes 'lance' (I can't explain this - if you can you should give a lot more credence to this answer).
The central letter of 'surgeon' is 'g'.
'g'+'lance'='GLANCE'
'at' is the link.
Can you help me to learn more?
(Other definitions for glance that I've seen before include "Swift look" , "Take a brief or hurried look" , "Look briefly or bounce off" , "Stroke - gander" , "Flash" .)