Change location — increases clicks (2,6)
I believe the answer is:
up sticks
'change location' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'increases clicks' is the wordplay.
'increases' becomes 'ups' (upping is a kind of increasing).
'clicks' becomes 'ticks' ('tick' can be a synonym of 'click').
'ups'+'ticks'='UP STICKS'
Can you help me to learn more?
(Other definitions for up sticks that I've seen before include "Move away without warning" , "Move house(colloq.)" , "Make off" .)