### Clue: One helping Texan behind on time isn't a rogue (9)
### Answer: ASSISTANT 
 ### Explanation: Definition: One helping
 ASS(what one might call a Texan's behind;rear end, an Americanism equivalent to the British "arse") **placed above**(on, in a down clue) **anagram of**(… rogue) [ T(abbrev. for "time") + ISN'T A] .