Give thought to decors in complex (8)
I believe the answer is:
consider
'give thought to' is the definition.
(I've seen this before)
'decors in complex' is the wordplay.
'complex' is an anagram indicator.
'decors'+'in'='decorsin'
'decorsin' anagrammed gives 'CONSIDER'.
(Other definitions for consider that I've seen before include "Think about - judge" , "Muse, mull over" , "Think carefully about" , "Suppose" , "Deem to be, believe" .)