Even getting a puncture! (4)
I believe the answer is:
flat
This clue is a double definition.
'even' is the first definition.
(similar in meaning)
'a puncture' is the second definition.
(I've seen this before)
'getting' is the link.
(Other definitions for flat that I've seen before include "Not hilly" , "Apartment - on the level" , "Even -- pitched too low" , "unexciting" , "Prostrate" .)