4 Down The clue is Wrap painful swelling enveloping boy's foot in game (5,5)
The solution is RUGBY UNION - wrap is RUG, painful swelling is BUNION and boy's foot is Y
11 Across The clue is Counters with something to sit on inside (6,4)
The solution is BEHIND BARS (= inside) - something to sit on is BEHIND and counters are BARS
13 Across The clue is This country drops unexpectedly in a second race (10)
The solution is UKRAINIANS -This country is UK, drops is RAINS, an anagram ("unexpectedly") of IN A and second = S