Turn taps a quarter and get a flood (5)
I believe the answer is:
spate
'a flood' is the definition.
(synonyms)
'turn taps a quarter' is the wordplay.
'turn' indicates anagramming the letters.
'a quarter' becomes 'e' ().
'taps' is an anagram of 'spat'.
'spat'+'e'='SPATE'
'and get' acts as a link.
(Other definitions for spate that I've seen before include "Tapes found in sudden flood" , "Suddenly got a lot" , "A sudden flood or rush" , "Sudden increased quantity" , "Flood; sudden burst" .)