Second look at carpet sample? (6)
I believe the answer is:
swatch
'carpet sample?' is the definition.
(I've seen this before)
'second look at' is the wordplay.
'second' becomes 's' (common abbreviation).
'look at' becomes 'watch' (I've seen this before).
's'+'watch'='SWATCH'
(Other definitions for swatch that I've seen before include "Samples" , "Sample book" , "Sample of fabric" , "Sample piece of cloth or other material" , "Model" .)