Answer: fiveo

AnswerCrossword Clue
FIVEOCops
FIVEOChin Ho's group
FIVEODanno's outfit, familiarly
FIVEOJack Lord's Hawaiian group, on '70s TV
FIVEO"Hawaii ..." (2010 CBS revival)
FIVEOMcGarrett's outfit, familiarly
FIVEOPolice, in slang
FIVEO"Hawaii ..."
FIVEO'Hawaii --'
FIVEO"Hawaii ..." (CBS revival)
FIVEOSteve McGarrett's Hawaiian group
FIVEOThe fuzz (and a trait of 17-A, 53-A, 11-D and 28-D)
FIVEOFuzz