Copies of tapestry (4)
'copies' is the definition.
('ape' can be a synonym of 'copy')
'of tapestry' is the wordplay.
'of' indicates a hidden word.
'APES' is hidden within 'tapestry'.
(Other definitions for apes that I've seen before include "Copies the primates?", "Zoo animals", "Peas (anag)", "Species of primate", "Imitates like primates".)