Help sailor meeting death on a regular basis (4)
I believe the answer is:
abet
'help' is the definition.
(thesaurus)
'sailor meeting death on a regular basis' is the wordplay.
'sailor' becomes 'ab' (abbreviation for able seaman).
'meeting' says to put letters next to each other.
'on a regular basis' indicates alternate letters.
The alternating letters of 'death' are 'et'.
'ab'+'et'='ABET'
(Other definitions for abet that I've seen before include "Encourage or assist (someone) to commit crime" , "Assist (in wrongdoing)" , "Beat (anag.)" , "Aid - connive with" , "Make good" .)