Sailors and nice ten at sea going without food (10)
I believe the answer is:
abstinence
'going without food' is the definition.
I can't judge whether this definition defines the answer.
'sailors and nice ten at sea' is the wordplay.
'sailors' becomes 'abs' (AB is short for able seaman).
'and' means one lot of letters go next to another.
'at sea' is an anagram indicator.
'nice'+'ten'='niceten'
'niceten' with letters rearranged gives 'tinence'.
'abs'+'tinence'='ABSTINENCE'
Can you help me to learn more?
(Other definitions for abstinence that I've seen before include "The avoidance of alcohol" , "Practice of refraining (from alcohol)" , "Teetotalism" , "giving it up" , "Non-partaking (of liquor)" .)