Frisky lamb sees flock (8)
I believe the answer is:
assemble
'flock' is the definition.
(thesaurus)
'frisky lamb sees' is the wordplay.
'frisky' indicates anagramming the letters.
'lamb'+'sees'='lambsees'
'lambsees' with letters rearranged gives 'ASSEMBLE'.
(Other definitions for assemble that I've seen before include "Manufacture" , "Put together all the components" , "Gather or collect together" , "Gather together at meeting place" , "Build" .)