2 Down, Unrestricted? It's restricted by one new penalty (8) ???I?I?E
5 Down, Struggle to swallow odd bits of nosh-is this painful? (6) ?O?S?L
18 Down, Remove least trace of food in revolutionary English eatery (6)
?F?A?L
20 Down, Tears up inanimate object in enthusiasm (6) S?I?I?
I have always been led to believe that in a cryptic clue, the word should be defined in the first or last word of the clue, and I can't see that its defined by struggle or painful.
Isn't the definition 'is this painful'? I think convention says it (a definition)comes at the beginning or end of a clue - but I don't think a definition has to be only a single word.
I think you should avoid this crossword, Mikey - there are at least half a dozen answers where the definition is not the last word (nor indeed the first word).
Mikey, and so are the setters of the Times Jumbo and the Times Cryptic crosswords! I still think you have misinterpreted the convention. The definition should come at the beginning or the end - but, to me, that's as far as it goes! Your 'first or last word' is a bit too rigid, I feel.