### Clue: Catch up with 1 across left incomplete (7)
### Answer: PARTIAL 
 ### Explanation: Definition: incomplete
 **Reversal of**(… up, in a down clue) TRAP(to catch/capture with, well, a trap) **plus**(with) IA(abbrev. for "1 across", as used for crossword clues, with the Roman numeral substitution for "one") + L(abbrev. for "left").