This crossword No. 13951 clues and answers were published on Mon 26 Jan 2015 and the puzzle can be visited by following The Guardian Quick Crossword No. 13951 link.
All Across Clues and Answers:
5-across – Type of pen : BALLPOINT
8-across – Captain of HMS Endeavour : COOK
9-across – Of the Middle Ages : MEDIEVAL
10-across – Vigour : ENERGY
11-across – Ornate architectural style : ROCOCO
13-across – Go after : FOLLOW
15-across – Small wave : RIPPLE
16-across – Punctuation mark : FULLSTOP
18-across – Liquid container : TANK
19-across – Strip of land jutting into water : PENINSULA
All Down Clues and Answers:
1-down – Oily fish : MACKEREL
2-down – Insubstantial : FLIMSY
3-down – Large American vulture : CONDOR
4-down – Gaming stake : ANTE
6-down – Springsteen song — Ron Burton : BORNTORUN
7-down – Man is clue : MASCULINE
12-down – Upper-case letters : CAPITALS
14-down – Inside : WITHIN
15-down – Meal : REPAST
17-down – Dregs of drink : LEES
This crossword has in total 20 where 10 are across and 10 are down.