Make better boots? (5)
I believe the answer is:
boost
'make' is the definition.
(thesaurus)
'better boots?' is the wordplay.
'better' indicates an anagram (with an improved letter-order).
'boots' anagrammed gives 'BOOST'.
(Other definitions for boost that I've seen before include "Fillip" , "Give hope or support to" , "advance" , "Uplift" , "lift" .)