Be quick to show pride in appearance (4,5)
I believe the answer is:
look smart
'show pride in appearance' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'be quick' is the wordplay.
'be' becomes 'look' (looking is a kind of being).
'quick' becomes 'smart' (I've seen this before).
'look'+'smart'='LOOK SMART'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for look smart that I've seen before include "Act quickly" , "Be quick!" , "appear fashionable and upmarket" .)